Gm Throttle Body Relearn

At this point, the engine should be idling. Nearly all post 96 vehicles use a throttle position sensor (TPS) to inform the engine control module of accelerator pedal and throttle plate position. Hi Peace777777. It was a easy fix I dont know if you can get your hands on a truck code computer but if not just get carb choke and throddle body cleaner take off the aircleaner box and remove the throttle body there will be carbon in it where the flap is clean it real good and put. Merchant Video. hey buddy thanks for all that I have a diesel colorado it started with, sometimes when i started the car it wouldent rev over 1200rpm but then go away and run =normally after a short while it wouldent rev at all over 1200 at all I took of the pipe to the throttle body and noticed the butterfly was closed when i cranked it over the butterfly stayed closed. It must be performed each time harness of electric throttle control actuator or ECM is disconnect. Not sure about the throttle body on the pre-2012's. There really isn't a relearn procedure for after cleaning a throttle body. Try doing the following which should bring the idle back down to a normal operating level: 1) Start the engine and let it idle in park for 3 minutes. If I wait the 5-10 seconds it goes from 1000rpm at a stop to around 800rpm's then I can put it into park and it's fine. Turn key on let sit 10-15 sec start car and let idle for another 5-10min AFTER it has warmed up. For full functionality of this site it is necessary to enable JavaScript. Chevrolet Silverado 2007-2013: How to Replace Throttle Body. Hello I had the same problem with my 05 chevy colorado I had the problems you spoke of and it got even worse it stoppoed ideling. Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O. Add To Wishlist. com Specifically, what I did was: 1. This original equipment fuel injection throttle body has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Access our free Relearning Procedures Repair Guide for Nissan Frontier, Xterra 1998-05 through AutoZone Rewards. III engine. Body Control Computer &/or Instrument Cluster replacement Theft deterrent password relearn is necessary. Compare prices & save money on Automotive Parts. 3L engine with very high idle speed. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. After looking on the net and only found fixes from new throttle body to taking it to dealer to get the comp. dimensions. Sometimes it takes a week. After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. GM throttle body relearn procedure How to do a GM throttle body relearn procedure. I did pedal dance to relearn idle it seems to be working fine, but I was wondering if there is a scanner that can run relearn and has other professional tricks on it. There is a fast and noticable vibration at stoplights. The two metal prongs under the TPS move when the throttle is pressed. Built for trouble-free ownership and 100% visually inspected and quality tested, this Throttle Body is backed by our 100% satisfaction guarantee. TEST 2: Passlock Reset. If you’ve cleaned or replaced the throttle body, and now you have a fluctuating idle, a MIL on with DTC P2279 (intake air system leak) and/or P0507 (idle control system rpm higher than expected), it’s likely that the throttle plate is now in a different position from the one the ECM/PCM had previously learned. Poor idle after a GM Throttle Body replacement install? We show you how to perform the PCM relearn procedure so your vehicle runs normally. Came across this info and figured it would help some of those with throttle body and idle issues. 3L because of a P0121 DTC code. Throttle position is reported using a TPS (Throttle Position Sensor). 4) Repeat step 3) five times. Clean the throttle body bore and the throttle plate using a clean shop towel with GM Top Engine Cleaner, P/N 1052626 (in Canada, P/N 993026), or ACDelco Upper Engine and Fuel Injector Cleaner, P/N 88861803, or an equivalent product. This component is also built into the self contained unit. It appears to have a slightly bigger bore, and it's got a custom designed intake throat. But as soon as I hit the gas my rpms go back to 3000. Add To Wishlist. Hyundai vehicles that exhibit a no start, rough idle, fluctuating idle, or Hyundai code may require a Hyundai throttle body cleaning and relearn procedure. If idle-memory is lost, the PCM may no longer be able to obtain the necessary throttle setting. 6L V6 Throttle Body | RockAuto. To do this, Turn the key to the run position with the engine off for at least three minutes. Make sure accelerator pedal is fully released. Body Control Computer &/or Instrument Cluster replacement Theft deterrent password relearn is necessary. 2011 CHEVROLET CAMARO 3. This component is also built into the self contained unit. Not sure about the throttle body on the pre-2012's. Throttle Body Relearn Procedure The engine Control Module (ECM) stores values that include the lowest possible throttle position (TP) sensor positions-0€percent, the rest positions-7€percent, and the return rate of both springs. GM Crankshaft Position Sensor Relearn. 1 - Turn the KOEO, while viewing your scanner, adjust your throttle body set screw until your throttle position is 2% 2 - Turn your key to the OFF position, disconnect your scanner 3- Head out under the hood and unplug your (TPS) and Idle Air Control Valve (IAC) 4 - Head back into your car and turn your KOEO, wait 30 seconds like this. My first assumption was that I did something to the connector. dimensions. Categories Automotive Repair Videos Tags Chevrolet, Chevy, Chrysler, code p2135, DIY, electronic throttle, Ford, how to fix reduced engine power, how to fix reduced engine power light, idle, p2101, reduced engine power, reduced engine power gmc, reduced engine power light, Reduced Engine Power Message, thottle body relearn, throttle body. Starts up idles fine, as soon as you put in gear it takes off on its on, and will run up to about 30-35 mph without ever touching the gas pedal. Here is the relearn procedure for our LS2 engines for throttle body: 1. 8 vortec v8 this is a fly by wire truck. 3) Start the engine again and let it idle in park for 3 minutes one more time. Throttle Body - 2008 Dodge Avenger | O'Reilly Auto Parts. Symptoms Of A Bad Throttle Position Sensor. If you’ve replaced your GM electronic throttle body or you’ve disconnected the battery, you must do a GM throttle body relearn to establish a new baseline idle. First off,Thank-you for your reply (much appreciated). Can anybody tell me if there is a relearn procedure after you clean the throttle body. I've looked at a few different threads on here about cleaning the throttle body, my question is do I need to do some kind of relearn procedure after cleaning? The background is I have a slight rough idling issue and figure that's a good place to start troubleshooting. This component is also built into the self contained unit. 3L engine with very high idle speed. The TDM portion of the BCM will validate the resistive chip in the GM Vehicle Theft Deterrent (VTD) Relearn Procedures Page 1 of 4. 4L engines in the vehicles listed below. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. Runs but not very good. It appears to have a slightly bigger bore, and it's got a custom designed intake throat. When changing to a new etb, disconnect battery for 10 min, replace throttle body, reconnect battery etb will sweep. Features: 100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performance. Hello I had the same problem with my 05 chevy colorado I had the problems you spoke of and it got even worse it stoppoed ideling. It opens and closes the throttle using electronic signals to control an actuator. 6L gas engines the throttle body relearn process is simply idling the vehicle for 3 minutes, turning it off for 1 minute then idling it again for another 3 minutes. Neither engine requires any special tools, but if you have the supercharged. My hhr 2006 i try to clean the throttle body but now the relenti is to high how i reprogram the throttle body You need to use the Tech II scan tool from GM to perform this relearn process. 2008 Pontiac Montana Fuel Injection Throttle Body 6 Cyl 3. I replaced my throttle body and can't get it to relearn. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. The General Motors throttle body is an excellent example of this issue. On my 2012 8th gen, I've replaced the throttle body without issue (nothing special needed done) - just remove and replace (4 bolts and an electrical connector). Leave the tune alone. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. When the valve becomes clogged or fails to respond properly, your vehicle underperforms, stalls and even experiences reduced fuel efficiency. Autel MaxiDAS DS708 wireless diagnostic scan tool makes throttle body relearning very easy without cutting wire. A dirty throttle body may keep the computer from relearning idle. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. ) I believe the throttle body is not broken that easily. A home-ground throttle body is an easy way to get more air into the Gen. Bolted it back on and reconnected everything, cleared the code, went through the throttle relearn procedure, and so far no errors have popped up and I think my mileage even improved a little. check that the throttle body is reinstalled correctly and that the gasket appears to be resealed well to the intake manifold (as you called, "plenum"). Designed as a direct-fit replacement of your worn-out or. Posts Tagged: GM throttle body relearn GM throttle body relearn procedure June 21, 2015. I cleaned the throttle body and performed idle reset with Matco maxgo-A AKA launch scan tool. Definitely worth it to minimize the throttle lag the car came with. All looked okay. The issue is, at lot of the modern cars are no longer using a PCV valve to ventilate the engine oil, but rather using the new style throttle body to pull the circulate air from the air filter. Instructions: 1) Start and idle the engine in park for 3 mins (0:54) 2) Turn ignition off for 60 sec (1:05) 3) Start and idle the engine in park for 3 mins again. Ensure that your performance remains unparalleled by having a fully operational Chevrolet Silverado throttle body unit from AutoZone. But as soon as I hit the gas my rpms go back to 3000. Remove the intake air duct between the air filter box and the throttle body. Without Gaskets, Idle Air Control Motor. The TPS is a very important part of the the throttle body fuel injection system since it reports to the fuel injection computer how much the throttle plate. I replaced the electronic throttle body on my 2010 Chevy Silverado this morning. The throttle body assembly is a self-contained unit. The throttle body was replaced with what looked like a known good. Start and run the engine in PARK for 3 minutes. Starts up idles fine, as soon as you put in gear it takes off on its on, and will run up to about 30-35 mph without ever touching the gas pedal. Apparently for the 2. The usual cause is an excessive carbon build-up on the throttle body. 3) Remove the 2 screws and then the TPS. Some people say you should never use your fingers to push open the throttle plate when cleaning electronic TBies, while others say this is not a problem. Bring your vehicle’s fuel system back to its top shape with this top-notch part. It appears to have a slightly bigger bore, and it's got a custom designed intake throat. TP sensors are normally mounted on the throttle body with the throttle plate shaft running into the sensor. 3L engine with very high idle speed. 2008 Chevy Equinox with 90K here yes you have to perform regular cleanings of the throttle body. ironllama 16,614 views. The Throttle Body is a refurbished unit from Rock Auto. How to Reset the Anti-Theft System. I had 5 engine codes One was tps high voltage One tps low voltage One tps failure One fuel trim bank 1 lean One fuel trim bank 2 lean I pull the throttle body and clean it extremely well with carb and choke cleaner. If I wait the 5-10 seconds it goes from 1000rpm at a stop to around 800rpm's then I can put it into park and it's fine. Vacuum leaks can disrupt the air-fuel flow because of an imbalanced airflow, which can cause throttle body pressure problems. 00 2000 01 2001 02 2002 gmc sierra 1500 throttle body 88984260 00027 oem NORMAL WEAR AND TEAR PLEASE ADVISE SOME THROTTLE BODIES WILL NEED A COMPUTER RELEARN PROCESS IN ORDER TO FUNCTION PROPERLY. During these run periods you may see a check engine light. Now, it idles between 1225 and 1400. Old (part #89452-12050) and New (part #89452-22090, about $74. Hello I had the same problem with my 05 chevy colorado I had the problems you spoke of and it got even worse it stoppoed ideling. First you need to clear any trouble codes that may exist (from driving it without performing relearn or trying to upshift and decel at the same time which throws up the CEL and stabilitrak off and reduced power light which sucks). It's possible for the valve to have lost the capability to open and close. If you find that your CTS runs poorly, you will have to have the re-learn the position. There isn't really any relearn, the engine just settles down, look at the IAC, look to make sure the manual linkage allows the throttle plate to shut, make sure the linkage is on the STOP, look for vacuum leaks TB to intake (that would probably set lean code), make sure there is no leak at the IAC there is an O-ring on the IAC. Throttle Position Sensor Description & Related Information. check that the throttle body is reinstalled correctly and that the gasket appears to be resealed well to the intake manifold (as you called, "plenum"). As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%. A home-ground throttle body is an easy way to get more air into the Gen. I change oil (penzoil highmileage synthetic every 3,000 miles) and in between i usually add about 2 quarts because oil burn, gm says thats a serious sign from an engine thats not an old v8. Chevrolet Silverado 2007-2013: How to Replace Throttle Body. Not sure about the throttle body on the pre-2012's. Throttle body should relearn on it's own. Access our free Relearning Procedures Repair Guide for Nissan Frontier, Xterra 1998-05 through AutoZone Rewards. How to do a GM throttle body relearn procedure If you’ve replaced your GM electronic throttle body or you’ve disconnected the battery, you must do a GM throttle body relearn to establish a new baseline idle. To do this, Turn the key to the run position with the engine off for at least three minutes. After that i can throw it in drive and watch my rpm fall from 3000 to 800 and in park normal idle rpm. In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. Features: 100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performance. Relearn procedure for throttle body replacement? Can anyone tell me if there is a relearn procedure required after replacing the throttle body? Save Share. Part # P311-1CA0EC6 Manu # 67-3002 Condition: Remanufactured. Even before a tune the truck idled perfect. Body Control Module (BCM). When you step on the gas pedal, it sends a signal to the computer, which then sends a signal to a little electric motor in the throttle body. As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%. Throttle Position Sensor Description & Related Information. Add to compare $ 479. Merchant Video. If you’ve cleaned or replaced the throttle body, and now you have a fluctuating idle, a MIL on with DTC P2279 (intake air system leak) and/or P0507 (idle control system rpm higher than expected), it’s likely that the throttle plate is now in a different position from the one the ECM/PCM had previously learned. That electric motor moves the throttle plate and allows more or less air into the engine -- depending on the position of the gas pedal. You can try disconnecting the battery for 30 minutes, but you more than likely will need the relearn procedure done at your local dealer. Access our free Relearning Procedures Repair Guide for Nissan Frontier, Xterra 1998-05 through AutoZone Rewards. Throttle Body Injector Tester. Made in USA. It's a simple follow these simple instructions only work for manuals. Well I pulled the throttle body out and cleaned it yesterday. It took me three days to find out how to get normal idle 1000 RPM. Pure voodoo to me until someone explains the difference. It was a easy fix I dont know if you can get your hands on a truck code computer but if not just get carb choke and throddle body cleaner take off the aircleaner box and remove the throttle body there will be carbon in it where the flap is clean it real good and put. GM vehicles have three types of Vehicle Thief Deterrent (VTD) systems, each requiring their own set of relearn procedures. I removed it yesterday, cleaned and reinstalled. What would cause my car to idle around 2500 rpm in 2006 Chevy cobalt I put in a new throttle body and took to dealership to relearn idle but idle is still high? Top Answer Wiki User. The General Motors throttle body is an excellent example of this issue. The usual cause is an excessive carbon build-up on the throttle body. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. How to relearn throttle body (2005 Saturn Ion) The Reduce Engine Power light was on, i already put a new pedal sensor and the light still on, so I bought a new throttle body unit but I don't know how to relearn it and the light still on. Bring your vehicle’s fuel system back to its top shape with this top-notch part. The idle relearn or reset procedure is very important, otherwise this code may still remain even after a throttle body clean. If you have access to GM SI2000, the gm service site, i read the throttle relearn procedure, which is idle for 3 minutes, key off for 1 minute, and repeat 3 times. I replaced my throttle body and can't get it to relearn. It was a easy fix I dont know if you can get your hands on a truck code computer but if not just get carb choke and throddle body cleaner take off the aircleaner box and remove the throttle body there will be carbon in it where the flap is clean it real good and put. I've looked at a few different threads on here about cleaning the throttle body, my question is do I need to do some kind of relearn procedure after cleaning? The background is I have a slight rough idling issue and figure that's a good place to start troubleshooting. Do not attempt to start the engine. Features: 100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performance. If your throttle body fails and you fall within the criteria, you can have your throttle body replaced free of charge at any Ford dealership. How to Relearn the ETC (electronic Throttle Control) If the battery is disconnected, the electronic throttle control (ETC) may forget the zero throttle position too. 8L Chevy S10 Pick Up). Related Articles. I need to do a throttle re-learn on my 2003 Chevy Silverado 1500 LT, just replaced the TPS, when I went to start the truck it was idling really high, I shut it down, disconnected the battery and it's been sitting for about 2 hours with the battery disconnected, I need the procedure for an idle relearn. What would cause my car to idle around 2500 rpm in 2006 Chevy cobalt I put in a new throttle body and took to dealership to relearn idle but idle is still high? Top Answer Wiki User. Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own, you can try this procedure. I've had mine on for over 20k miles and it keeps the better throttle response with no relearning or lessening. Information is subject to change without notice. All trademarks are property of their. If your vehicle has already exceeded the warranty's time or mileage limits, this coverage will last through January 31, 2015. hey buddy thanks for all that I have a diesel colorado it started with, sometimes when i started the car it wouldent rev over 1200rpm but then go away and run =normally after a short while it wouldent rev at all over 1200 at all I took of the pipe to the throttle body and noticed the butterfly was closed when i cranked it over the butterfly stayed closed. An electronic throttle body (or electronic throttle control) connects to the gas pedal/accelerator electronically without the use of cables. is there any one that knows the procedure?. Re: Throttle body replacement and reprogramming Wonder why owners who have replaced the spark plugs didn't mention having to have the throttle body relearn done? The intake manifod has to be removed along with the throttle body, correct? Shouldn't this cause the throttle body to need relearning if in fact that is the case?. I disconnected the. The issue is, at lot of the modern cars are no longer using a PCV valve to ventilate the engine oil, but rather using the new style throttle body to pull the circulate air from the air filter. We carry top brands like Airaid, Taylor Cable, Volant, Jet, aFe and more. Now, it idles between 1225 and 1400. The two metal prongs under the TPS move when the throttle is pressed. If you've cleaned or replaced the throttle body, and now you have a fluctuating idle, a MIL on with DTC P2279 (intake air system leak) and/or P0507 (idle control system rpm higher than expected), it's likely that the throttle plate is now in a different position from the one the ECM/PCM had previously learned. Over time, the inside of the throttle body can get crudded up with. I have a 2011 chevy Silverado with a 4. Poor idle after a GM Throttle Body replacement install? We show you how to perform the PCM relearn procedure so your vehicle runs normally. I change oil (penzoil highmileage synthetic every 3,000 miles) and in between i usually add about 2 quarts because oil burn, gm says thats a serious sign from an engine thats not an old v8. This original equipment fuel injection throttle body has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. If your vehicle has already exceeded the warranty's time or mileage limits, this coverage will last through January 31, 2015. There isn't really any relearn, the engine just settles down, look at the IAC, look to make sure the manual linkage allows the throttle plate to shut, make sure the linkage is on the STOP, look for vacuum leaks TB to intake (that would probably set lean code), make sure there is no leak at the IAC there is an O-ring on the IAC. 2008 Pontiac Montana Fuel Injection Throttle Body 6 Cyl 3. Late 80’s Ford Lincoln Town Car w/Throttle Body Fuel Injection won’t start unless we pour gas in the carborator then starts and runs fine. Nothing else has changed and I've given it 4 days of driving to relearn with the clean throttle body. 3) Start the engine again and let it idle in park for 3 minutes one more time. 3L because of a P0121 DTC code. A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). Funny thing is in neutral and park it idles smooth as silk, only in drive and reverse it s rough. check and recheck all connection of the intake tube - any leak of unmetered air will cause funny idle issues, the Mass Air Flow meter, located near the filter is what measures the air. Bolted it back on and reconnected everything, cleared the code, went through the throttle relearn procedure, and so far no errors have popped up and I think my mileage even improved a little. After you replace the computer chip, it will automatically reset itself when you turn the ignition key from the "on" position to the "off" position. That didn't work. Chevy uses a simple idle relearn process. I pulled the trigger last week and ordered the Jet Performance 76101 Throttle Body for my 5. Throttle Body Cleaner. Clean the throttle body bore and the throttle valve plate using a clean shop towel with ETech Chemicals ET110 Throttle Body Cleaner. But I wanted to avoid spending a lot of money. My car has vario. As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. 3 throttle body relearn procedures my 2004 chevy silverado was giving code P1516, I changed - Chevrolet 2500 question 1 Reply. Actually, the real problem is that the accelerator is sticking (although this is not as evident as the low idle; this is why you feel the surge, instead of a smooth acceleration. Turn off ignition try to start car again and it won’t start on it’s own. Refer to Throttle Learn. 2) Remove these 3 10mm bolts and then remove the throttle body cover. Well, it finally got it today! Thanks for responding!!. Relearn procedure may need to be performed upon installation of unit. It took me three days to find out how to get normal idle 1000 RPM. Over time, the inside of the throttle body can get crudded up with. Mechanic installed a remanufactured throttle body on my 2002 Saturn Vue about 6 months ago. voltage for both 1 and 2 at closed throttle is below 1€volt and increases as the throttle plate is opened. After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. The idle relearn or reset procedure is very important, otherwise this code may still remain even after a throttle body clean. IDLE LEARN Perform the following relearn procedure for the on-board computer to adjust to the new idle position on the electronic throttle body. As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%. Hyundai vehicles that exhibit a no start, rough idle, fluctuating idle, or Hyundai code may require a Hyundai throttle body cleaning and relearn procedure. In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5. Throttle body should relearn on it's own. For the 1991 and newer TPS test, go to: How To Test The Throttle Position Sensor (1991-1993 2. How to Relearn the ETC (electronic Throttle Control) If the battery is disconnected, the electronic throttle control (ETC) may forget the zero throttle position too. Sent from my TbooK 16 Pro(E5C8) using Tapatalk. Even before a tune the truck idled perfect. Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O. GM Crankshaft Position Sensor Relearn. Without Gaskets, Idle Air Control Motor. If it's still throwing the code I bet there is a problem with the wiring harness that plugs into the throttle body 2011 Colorado CC Z71 2LT 4X4 3. 3L engine with very high idle speed. While you waiting for the ECU reset clean the throttle body with a rag and some carby cleaner. Start and run the engine in PARK for 3 minutes. I have 07 sentra base model and after I cleaned throttle body and combustion rpms are too high at idle torque and hp stayed same. After letting vehicle idle to full operating temperature with no loads on I shut the key off and checked over my work. What would cause my car to idle around 2500 rpm in 2006 Chevy cobalt I put in a new throttle body and took to dealership to relearn idle but idle is still high? Top Answer Wiki User. Leave • Release throttle when fuel cut-off occurs or if RPM value is exceeded. The ECM needs to relearn the new idle airflow rate thru the now cleaned throttle body. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. Several different posts on the forum from savvy GM techs have warned readers not to spray the TB, but put the TB cleaner on a rag and then wipe it clean. The usual cause is an excessive carbon build-up on the throttle body. Your vehicle's Pontiac Throttle Body is a component of your vehicle's air intake system that manages airflow within an engine. If anyone has any tips, I'd be glad to hear from you. Vehicle drivability computer relearn procedure is now complete. A quick search showed that I have to do a "relearn" procedure: 3min idle (during which the PCM will reduce the idle); a minute off then 3min idle during which the PCM will dial in the exact idle. Came across this info and figured it would help some of those with throttle body and idle issues. 01996chevrolet truckg30 vanv85 99gmcsavana 1500v85 96chevrolet truckg10 trucktahoev85. I need to do a throttle re-learn on my 2003 Chevy Silverado 1500 LT, just replaced the TPS, when I went to start the truck it was idling really high, I shut it down, disconnected the battery and it's been sitting for about 2 hours with the battery disconnected, I need the procedure for an idle relearn. I've had mine on for over 20k miles and it keeps the better throttle response with no relearning or lessening. dimensions. Without Gaskets, Idle Air Control Motor. Car is now in Reduced Power Mode. Remove the intake air duct between the air filter box and the throttle body. 200 matches. STEP ONE: Disconnect the Negative cable for a few minutes. 4L engines in the vehicles listed below. Bulletin # ETI 4M09 4 page 1 of 8 GM Relearn Procedure List. This original equipment fuel injection throttle body has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Easy to use parts catalog. 8 Duramax the relearn process needs to be activated by a scan tool. The TPS is a very important part of the the throttle body fuel injection system since it reports to the fuel injection computer how much the throttle plate. 3L, select and run the Idle Learn Reset test. Turn ignition ON 3. In this video, we’ll be going through the required relearn instructions for your vehicle. Click to play video. I forgot to add if you do the effective throttle angle you need to do the same to open loop FF ta prediction table. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Many car makers including GM started installing fly by wire electronic throttle bodies. The throttle body doesn't look too bad to change on my own. We carry top brands like Airaid, Taylor Cable, Volant, Jet, aFe and more. Even before a tune the truck idled perfect. Your vehicle's Pontiac Throttle Body is a component of your vehicle's air intake system that manages airflow within an engine. dimensions. After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. Changed plugs, oil and air filter, cleaned maf and throttle body, fuel filter and trans fluid. Read customer throttle body spacer reviews! Click or call 800-544-8778. How to Relearn the ETC (electronic Throttle Control) If the battery is disconnected, the electronic throttle control (ETC) may forget the zero throttle position too. This warranty is a one-time repair program. A home-ground throttle body is an easy way to get more air into the Gen. They install in between your throttle body and intake manifold creating a larger intake plenum. Its got new spark plugs. I just changed my cylinder head and in the intervening two weeks was getting an occasional P0121 code. SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures ----- I have been receiving a lot of calls at the Tech Support Line about proper throttle body cleaning procedures on various vehicles. Add to compare $ 479. is there any one that knows the procedure?. 1% similar) I have done my best to put correct applications, however, it is possible that not 96gmcc3500 pickupv85 96gmcc2500. To perform this procedure, unhook the throttle position sensor (TPS) and idle air control sensor (IAC. 0L Truck Engines. This component is also built into the self contained unit. Release throttle when fuel cut-off occurs or if RPM value is; These are example steps, and not in any order. I need to do a throttle re-learn on my 2003 Chevy Silverado 1500 LT, just replaced the TPS, when I went to start the truck it was idling really high, I shut it down, disconnected the battery and it's been sitting for about 2 hours with the battery disconnected, I need the procedure for an idle relearn. The idle relearn or reset procedure is very important, otherwise this code may still remain even after a throttle body clean. The engine management computer has failed. Start and run the engine in PARK for 3 minutes. Here is what is done: If the TB (Throttle Body) was replaced, turn the key "on" without cranking the engine for one minute to allow the PCM to learn the adaptive table values for the new TB (Throttle Body). Some threads say the process is automatic after driving for a while but, other threads say you have to take it to dealer. Chevy throttle body relearn procedure. 7L with a few mods. Make sure accelerator pedal is fully released. Starts up idles fine, as soon as you put in gear it takes off on its on, and will run up to about 30-35 mph without ever touching the gas pedal. I'd start with the pedal and go from there. Every TB is tested for all critical functions, including response time and airflow at multiple points. 3L engine with very high idle speed. Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O. I thought I had kicked the carpet on to the pedal but nope pedal was fine. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. Chevy uses a simple idle relearn process. These diagrams include: Access our Silverado 2008 Throttle-Idle Learn Procedure Repair Guide by creating an account or signing into your AutoZone Rewards account. When you step on the gas pedal, it sends a signal to the computer, which then sends a signal to a little electric motor in the throttle body. Page 5 of 5: GM Electronic Throttle Body Circuit Descriptions and Testing Tips. A home-ground throttle body is an easy way to get more air into the Gen. Vehicle drivability computer relearn procedure is now complete. Check transmission fluid on GM vehicles; Emission 1 fuse blown, P0030; GM Power Steering Noise; GM Service bulletin #10287 Premature timing chain wear; GM throttle body relearn procedure; Harsh shifting, late shifting, no shifting; Headlights flickering; Low beam Headlights don’t work; No crank, no start; No start no crank GM vehicles. Here is the step-by-step instruction on the how reset GM ilde learn with ds708. The General Motors throttle body is an excellent example of this issue. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body above the throttle plate. If anyone has any tips, I'd be glad to hear from you. Please narrow the Fuel Injection Throttle Body results by selecting the vehicle. The issue is, at lot of the modern cars are no longer using a PCV valve to ventilate the engine oil, but rather using the new style throttle body to pull the circulate air from the air filter. I forgot to add if you do the effective throttle angle you need to do the same to open loop FF ta prediction table. Also, since that first day in 1988, each & every throttle body has been 100% designed & built in the USA. Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. Your vehicle's Pontiac Throttle Body is a component of your vehicle's air intake system that manages airflow within an engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. voltage for both 1 and 2 at closed throttle is below 1€volt and increases as the throttle plate is opened. I went through the learning procedure and after about the 3rd time it works but as soon as I hit the gas my Idle goes back high around 2900 rpms. 3L engine with very high idle speed. 2007 Hyundai entourage throttle body relearn,have factory manual and nowhere in book is relearn procedure shown This is something that you must go to a dealer for! It is called a FLASH and they charge 100+ an hr to complete it. check that the throttle body is reinstalled correctly and that the gasket appears to be resealed well to the intake manifold (as you called, "plenum"). In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5. Release throttle when fuel cut-off occurs or if RPM value is; These are example steps, and not in any order. The throttle body was replaced. Throttle Body Trouble Codes. The throttle body was replaced because it was sporting a TPS DTC P0122. This original equipment fuel injection throttle body has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Note: These procedures are a little tricky to do. The problem is due to hydrocarbon (sludge) buildup inside the throttle body, and possibly the air flow sensor. SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures-----I have been receiving a lot of calls at the Tech Support Line about proper throttle body cleaning procedures on various vehicles. 3 throttle body relearn procedures my 2004 chevy silverado was giving code P1516, I changed - Chevrolet 2500 question 1 Reply. With the passage of time, the sensor will start to get worn and may eventually have to be replaced. If you’ve cleaned or replaced the throttle body, and now you have a fluctuating idle, a MIL on with DTC P2279 (intake air system leak) and/or P0507 (idle control system rpm higher than expected), it’s likely that the throttle plate is now in a different position from the one the ECM/PCM had previously learned. 6L gas engines the throttle body relearn process is simply idling the vehicle for 3 minutes, turning it off for 1 minute then idling it again for another 3 minutes. Have a couple codes which I cleared, P0120 and P1516 but they keep coming back. That fixed the grinding problem!. Some people say you should never use your fingers to push open the throttle plate when cleaning electronic TBies, while others say this is not a problem. I've looked at a few different threads on here about cleaning the throttle body, my question is do I need to do some kind of relearn procedure after cleaning? The background is I have a slight rough idling issue and figure that's a good place to start troubleshooting. The throttle body was replaced. I pulled the Air-Intake & noticed the Throotle Body is very Dirty. For full functionality of this site it is necessary to enable JavaScript. Chevy uses a simple idle relearn process. Leave the tune alone. Throttle Body - 2008 Dodge Avenger | O'Reilly Auto Parts. Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O. Background: I replaced the Throttle Body while chasing down a P0121. It was a easy fix I dont know if you can get your hands on a truck code computer but if not just get carb choke and throddle body cleaner take off the aircleaner box and remove the throttle body there will be carbon in it where the flap is clean it real good and put. If idle-memory is lost, the PCM may no longer be able to obtain the necessary throttle setting. The ECM needs to relearn the new idle airflow rate thru the now cleaned throttle body. Malibu - Relearn? - i recently replaced the motor in my 2005 malibu 3. 8 vortec v8 this is a fly by wire truck. Information is subject to change without notice. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. Considering replacing the throttle body on my '06 balt myself based on feedback I got from a shop. The procedure to replace it, however, depends on whether you have the naturally aspirated, 2. It's a simple follow these simple instructions only work for manuals. Im not getting any kind of throttle resonce it is dbw (drive By wire ) any ideas i was told i need to set the comp. When you step on the gas pedal, it sends a signal to the computer, which then sends a signal to a little electric motor in the throttle body. The two metal prongs under the TPS move when the throttle is pressed. If it still doesn't work you will probably have to clean the throttle blade on the throttle body cause it is probably gunked up and won't allow the blade to come to full "seat" position letting it relearn the idle. I recently replaced my throttle body and did the the steps needed to relearn it, but it still doesn’t idle right. If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. I tried the relearn procedure of 3 minutes idling in park, engine off for 6 … read more. Chevy Suburban 2003-2006, Remanufactured Fuel Injection Throttle Body by Cardone Reman®. I forgot to add if you do the effective throttle angle you need to do the same to open loop FF ta prediction table. Here are the instructions how to enable JavaScript in your web browser. The problem is due to hydrocarbon (sludge) buildup inside the throttle body, and possibly the air flow sensor. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body above the throttle plate. So if you see that your otherwise working throttle body has a little soot in it and you have a compulsion to whip a rag out and clean it, lay down. The throttle body is an essential part of the inlet air stream of modern gasoline engines. I blipped the throttle a couple of times and that didn't bring the rpms down. check that the throttle body is reinstalled correctly and that the gasket appears to be resealed well to the intake manifold (as you called, "plenum"). Don't let these issues impact your sedan - come to AutoZone today for a quality throttle body unit for Chevy Impala. Old (part #89452-12050) and New (part #89452-22090, about $74. Anyone have the relearn procedure? I could have sworn I've seen it posted on here but I can't find it. Throttle Position Sensor Description & Related Information. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. But as soon as I hit the gas my rpms go back to 3000. First off,Thank-you for your reply (much appreciated). The TPS is a very important part of the the throttle body fuel injection system since it reports to the fuel injection computer how much the throttle plate. IDLE LEARN Perform the following relearn procedure for the on-board computer to adjust to the new idle position on the electronic throttle body. Clean a GM throttle body Clean a GM electronic throttle body and perform an idle relearn Follow these steps to clean a GM electronic throttle body. Bring your vehicle’s fuel system back to its top shape with this top-notch part. 1 - Turn the KOEO, while viewing your scanner, adjust your throttle body set screw until your throttle position is 2% 2 - Turn your key to the OFF position, disconnect your scanner 3- Head out under the hood and unplug your (TPS) and Idle Air Control Valve (IAC) 4 - Head back into your car and turn your KOEO, wait 30 seconds like this. TP sensors are normally mounted on the throttle body with the throttle plate shaft running into the sensor. Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. Before I replaced the throttle body the truck idled at 760 or so. I have a 2011 chevy Silverado with a 4. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. Turn ignition ON 3. This bulletin applies to 2005-2013 Honda Pilot vehicles. Well, it finally got it today! Thanks for responding!!. Chevy throttle body relearn procedure. 2 engine was not constant and low at times. 6L gas engines the throttle body relearn process is simply idling the vehicle for 3 minutes, turning it off for 1 minute then idling it again for another 3 minutes. Oreillyauto. If you would like to reset the PCM (computer) you can disconnect the negative battery wire for five minutes. Removing it and replacing it with a shiny, new throttle position sensor (TPS), or a new unit all together can keep your truck running strong. During that period the idle may be higher idle than normal. Add To Wishlist. A home-ground throttle body is an easy way to get more air into the Gen. Anyone have the relearn procedure? I could have sworn I've seen it posted on here but I can't find it. Poor idle after a GM Throttle Body replacement install? We show you how to perform the PCM relearn procedure so your vehicle runs normally. After letting vehicle idle to full operating temperature with no loads on I shut the key off and checked over my work. Is there any other way to reset/relearn idle without a tech 2. GM vehicles have three types of Vehicle Thief Deterrent (VTD) systems, each requiring their own set of relearn procedures. 103 Cell: 484-894-9429 [email protected] DATE: 4-29-2009 SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures ----- I have been receiving a lot of calls at the Tech Support Line about proper. This warranty is a one-time repair program. I change oil (penzoil highmileage synthetic every 3,000 miles) and in between i usually add about 2 quarts because oil burn, gm says thats a serious sign from an engine thats not an old v8. That electric motor moves the throttle plate and allows more or less air into the engine -- depending on the position of the gas pedal. 8L Chevy S10 Pick Up). Throttle position sensor, part #89452-22090; 1) Unplug the connector from the TPS. Many car makers including GM started installing fly by wire electronic throttle bodies. Have a couple codes which I cleared, P0120 and P1516 but they keep coming back. Your vehicle's Pontiac Throttle Body is a component of your vehicle's air intake system that manages airflow within an engine. As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%. So I pulled my throttle body to clean it. It's possible for the valve to have lost the capability to open and close. The idle may be unstable or a DTC may set if the throttle position is not learned. This sounded like the throttle body to me (which by change Chevy makes you buy the entire friggin thing if you need to fix the computer chip). The General Motors throttle body is an excellent example of this issue. Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. I did pedal dance to relearn idle it seems to be working fine, but I was wondering if there is a scanner that can run relearn and has other professional tricks on it. For full functionality of this site it is necessary to enable JavaScript. Your Silverado's throttle body is an air-intake butterfly valve that regulates air flow. In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5. Part # P311-1CA0EC6 Manu # 67-3002 Condition: Remanufactured. I thought I had kicked the carpet on to the pedal but nope pedal was fine. My instant though was the throttle linkage was jammed. Videos for related products. Refer to Air Cleaner Inlet Duct Replacement. 76108 JET Powr-Flo Throttle Body #76108 Add to cart. I am having minor Idling issues ,No codes; BUT I want to Clean my Throttle Body with "Deep Creep" by "Seafoam". A quick search showed that I have to do a "relearn" procedure: 3min idle (during which the PCM will reduce the idle); a minute off then 3min idle during which the PCM will dial in the exact idle. I have a 2008 chevy silverado 1500 4. Im not getting any kind of throttle resonce it is dbw (drive By wire ) any ideas i was told i need to set the comp. Here is the step-by-step instruction on the how reset GM ilde learn with ds708. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. Throttle Valve Relearn Throttle Valve Closed Postion Learning is to learn the fully closed postion of the throttle valve by monitoring the throttle position sensor output signal. I just changed my cylinder head and in the intervening two weeks was getting an occasional P0121 code. I took it in and the replaced the throttle position sensor (everything on the side of the throttle body) for free. Holley – GM LS1/LS2/LS6 Modular Hi Ram Intake Manifold. I just replaced my throttle body and gasket in my 2008 Chevy Impala SS 5. It must be performed each time harness of electric throttle control actuator or ECM is disconnect. In fact, it may have made it worse. Any ideas, thanks, Rob. Actually, the real problem is that the accelerator is sticking (although this is not as evident as the low idle; this is why you feel the surge, instead of a smooth acceleration. SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures-----I have been receiving a lot of calls at the Tech Support Line about proper throttle body cleaning procedures on various vehicles. Blue Streak Electronics recommends to warm the engine after the idle relearn procedure, without use of the air conditioner. The idle may be unstable or a DTC may set if the throttle position is not learned. 01996chevrolet truckg30 vanv85 99gmcsavana 1500v85 96chevrolet truckg10 trucktahoev85. Mechanic installed a remanufactured throttle body on my 2002 Saturn Vue about 6 months ago. During these run periods you may see a check engine light. Leave the tune alone. 2008 Chevy Equinox with 90K here yes you have to perform regular cleanings of the throttle body. Add To Wishlist. Remove the plastic hose from the throttle body, take a rag and spray with carb cleaner (gloves are recommended), open the throttle plate with one hand and wipe the bore and the. 4) Repeat step 3) five times. I went through the learning procedure and after about the 3rd time it works but as soon as I hit the gas my Idle goes back high around 2900 rpms. TEST 2: Passlock Reset. Is it possible for the throttle relearn to not take affect? Check all connections around throttle body, electrical and vacuum. The throttle body was replaced because it was sporting a TPS DTC P0122. Congratulations on installing your brand-new Spectra Premium electronic throttle body. Throttle Body Trouble Codes. SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures-----I have been receiving a lot of calls at the Tech Support Line about proper throttle body cleaning procedures on various vehicles. Turn off ignition try to start car again and it won’t start on it’s own. To do this, Turn the key to the run position with the engine off for at least three minutes. Jn2 with the 11-13 GT with 85mm BBK throttle body i had to add 20% to effective throttle, than data logged Desired, actual, wheel TRQ error, Rpm and TPS. Throttle position is reported using a TPS (Throttle Position Sensor). Runs but not very good. Your truck does not have an IAC motor / system that is for cable driven throttle bodies, it is all done thru the drive by wire and throttle blade angle adjustments on your drive by wire. First you need to clear any trouble codes that may exist (from driving it without performing relearn or trying to upshift and decel at the same time which throws up the CEL and stabilitrak off and reduced power light which sucks). In park, the engine will idle at around 3K. throttle body, the engine idle speed may fluctuate, cause the engine to stall or even turn on the check engine light. Partsgeek offers replacements for the Grand Prix, G6, GTO, Torrent, Montana, G8 plus more. GM throttle body relearn procedure How to do a GM throttle body relearn procedure. The problem is due to hydrocarbon (sludge) buildup inside the throttle body, and possibly the air flow sensor. My idle on my 2. Page 5 of 5: GM Electronic Throttle Body Circuit Descriptions and Testing Tips. A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). After letting vehicle idle to full operating temperature with no loads on I shut the key off and checked over my work. Please find the first in a series of Manufacturer’s Recommended Procedures. 3L engine with very high idle speed. This component is also built into the self contained unit. Instructions: 1) Start and idle the engine in park for 3 mins (0:54) 2) Turn ignition off for 60 sec (1:05) 3) Start and idle the engine in park for 3 mins again. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. If you have access to GM SI2000, the gm service site, i read the throttle relearn procedure, which is idle for 3 minutes, key off for 1 minute, and repeat 3 times. The issue is, at lot of the modern cars are no longer using a PCV valve to ventilate the engine oil, but rather using the new style throttle body to pull the circulate air from the air filter. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body above the throttle plate. Lots of oil and a little build up. Throttle position is reported using a TPS (Throttle Position Sensor). Does anyone know what's actually true and what the actual relearn process. The GM TBI (Throttle Body Injection) system uses a pair of low pressure fuel injectors mounted above the throttle body opening. Throttle Valve Relearn Throttle Valve Closed Postion Learning is to learn the fully closed postion of the throttle valve by monitoring the throttle position sensor output signal. The throttle body on your Chevy Cobalt is held to the intake manifold by four bolts. How to Relearn the ETC (electronic Throttle Control) If the battery is disconnected, the electronic throttle control (ETC) may forget the zero throttle position too. 8 Series III Engines - Duration: 8:15. It must be performed each time harness of electric throttle control actuator or ECM is disconnect. Throttle Body Cleaner. IDLE LEARN Perform the following relearn procedure for the on-board computer to adjust to the new idle position on the electronic throttle body. That didn't work. If your vehicle has already exceeded the warranty's time or mileage limits, this coverage will last through January 31, 2015. New Throttle Body -- Relearn procedure may need to be performe Part Number. Srry to hijack thread but im having problems with my truck its got the 5. Refer to Air Cleaner Inlet Duct Replacement. 1% similar) I have done my best to put correct applications, however, it is possible that not 96gmcc3500 pickupv85 96gmcc2500. There is a fast and noticable vibration at stoplights. There is no throttle cable on these trucks so you shouldn't move the butterfly when you clean the throttle body as the computer will need to relearn its proper position. 7 note: quoted shipping is to usa 48 states only. Posts Tagged: GM throttle body relearn GM throttle body relearn procedure June 21, 2015. SUBJECT: GM Drive by Wire Throttle Body Cleaning Procedure and Relearn Procedures-----I have been receiving a lot of calls at the Tech Support Line about proper throttle body cleaning procedures on various vehicles. Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O. It is clean inside. Add to compare $ 479. It appears to have a slightly bigger bore, and it's got a custom designed intake throat. Update: Fixed itself, see latter post. Late 80’s Ford Lincoln Town Car w/Throttle Body Fuel Injection won’t start unless we pour gas in the carborator then starts and runs fine. This original equipment fuel injection throttle body has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Here are the instructions how to enable JavaScript in your web browser. Throttle Position Sensor Description & Related Information. They install in between your throttle body and intake manifold creating a larger intake plenum. 00 2000 01 2001 02 2002 gmc sierra 1500 throttle body 88984260 00027 oem NORMAL WEAR AND TEAR PLEASE ADVISE SOME THROTTLE BODIES WILL NEED A COMPUTER RELEARN PROCESS IN ORDER TO FUNCTION PROPERLY. Removing it and replacing it with a shiny, new throttle position sensor (TPS), or a new unit all together can keep your truck running strong. Throttle Body Injector Tester. My engine was going into limp mode and causing a bunch of codes in the dash once I replaced the throttle body and went through throttle relearn process it was better than new positive throttle response no hesitation no rough idle no codes perfect. For example, to perform a throttle relearn on a 2008 Silverado 5. 8 Duramax the relearn process needs to be activated by a scan tool. That electric motor moves the throttle plate and allows more or less air into the engine -- depending on the position of the gas pedal. It opens and closes the throttle using electronic signals to control an actuator. I restarted the vehicle and vehicle started idling at 1800 RPM's. I recently replaced my throttle body and did the the steps needed to relearn it, but it still doesn’t idle right. Throttle position sensor, part #89452-22090; 1) Unplug the connector from the TPS. A bad throttle position sensor is the last thing that you will ever wish to have on your ride. Its got new spark plugs. Disconnect battery 10-15mins. Congratulations on installing your brand-new Spectra Premium electronic throttle body. Access our free Throttle-Idle Learn Procedure Repair Guide for Silverado 2008 through AutoZone Rewards. In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5. Throttle Body Injector Tester. Several different posts on the forum from savvy GM techs have warned readers not to spray the TB, but put the TB cleaner on a rag and then wipe it clean.