how to reset throttle position sensor gmchow to reset throttle position sensor gmc

For many people, visiting a mechanic for routine maintenance is a stressful experience. The throttle body system is one of many components that work jointly to offer steady engine acceleration. How Long Can You Drive With A Bad Throttle Position Sensor? However, the nature of this effect can depend on how exactly the sensor has failed. I ended up doing all the steps, but I am not sure if all of that is really necessary. You should disconnect your negative battery cable before removing the sensor. Before you start calibrating your TPS, ideally, you will want to find detailed instructions on how to carry out the procedure on your specific model of car. These prices included the new sensor and the cost of labor. How long you can drive with a bad TPS depends on the Severity of the Problem. This method is simple, and you don't need to be an expert: Please take off your foot from the accelerator to release it properly. The ECM then adjusts the fuel injection and ignition timing based on this signal. As well discuss in the next section, this can present a pretty serious safety risk, not only for you but for other drivers on the road with you. If you notice any of the symptoms above, and your car displays the check engine light, a malfunctioning throttle position sensor is likely to blame. If it is left closed, the engine will not receive any air and start at all. It may need repair, replacement or reprogramming. Rough Idling. Turn the ignition on, but without starting the engine . In some cases, it will need replacing. If you see any throttle position sensor code, proceed to the next step. 3. In some instances, they might also fail if your car has been improperly serviced. Disconnect the negative battery cable and set it aside. The presence of a service light can indicate various things, but one possible cause is a malfunctioning throttle position sensor. You will not require any tools for this procedure, and it is beneficial in circumstances in which the battery has died, or you require a jump start. In general, however, the average lifespan of a throttle position sensor in a typical vehicle is about 80,000 miles. If this car sensor fails, you'll experience a drastic poor engine performance and rough acceleration; thus, the ECU will detect this fault and trigger the engine warning light on the dashboard. 2. If you have installed a new throttle valve and it has not been calibrated, then the sensor will not be able to work correctly and will therefore provide inaccurate information to the ECM. Here's the throttle body relearn procedure 1) Start the engine and let it idle in park for 3 minutes. You can still drive, but dont expect to break any 1/4-mile records, and your catalytic converter is going toburn out in a few hundred miles or less. The throttle position sensor census how much air is flowing into the engine and into the internal combustion system. It is definitely one of the cheaper repair jobs in an engine, so dont sweat it if resetting the sensor does not work. Although your engine may start, it will have minimal to no power, causing it to shut down. There are four sensors in the throttle actuator system. Its important to address the problem as soon as you start noticing symptoms of a bad TPS. Assuming you do want to complete this repair yourself, however, heres how to replace the throttle position sensor on a GMC vehicle: Why AC Compressor Runs, But Wont Take Refrigerant? Start the engine and let it run for a while. How to reset throttle position sensor on 2009 Chevy Silverado 1500 . Therefore, it plays a crucial role in calculating the engines accurate air to fuel mixture ratio. Inside the throttle position sensor is a device called a potentiometer. The throttle position sensor is inside the throttle actuator. The location of the pedal controls the air circulationof the engine. Some common symptoms of a failed throttle position sensor include hesitation, poor acceleration, rough idle, increased emissions and an illuminated Check Engine Light. If your engine is at idle but you notice that your engine speed is significantly higher or lower than this, or if your engine speed keeps changing even when youre not pressing the gas pedal, its possible that your throttle position sensor has failed. Also if this video was helpful to you show you like it by hitting the like button! That is a symton of a injector leaking down, flooding the engine making it hard starting. If you have any questions or comments about how to reset a throttle position sensor, email any time. Select vehicle model GMC YuKon (high idle speed issue) and year Select "Diagnostic Trouble Codes DTCs" on "Engine Control Module" menu to clear fault code Check there is no stored fault codes, back to select "Special Functions" on main menu Select Engine Speed/Throttle >> Engine Position Most drivers will only know about the Throttle Position Sensor once there is a problem with their engine. 3. Your email address will not be published. Heat the vehiclesengine to the proper operating temperature before proceeding with the rest of the procedure. However, to do this, you need to make sure that the diagnostic scanner you buy is compatible with your car engine and has a throttle sensor reset feature for your car model. Erase all the codes. Your email address will not be published. However, on most car models you will need to disconnect and reconnect the car battery. When the engine of a vehicle needs to generate power to power the car, the mechanical system inside pumps fuel into the combustion chamber. It is important to note that the check engine indicator can mean lots of different things, so unless it coincides with any other symptoms, it may result from a different issue with your car engine. 5. When a TPS goes bad, then the cars throttle body wont function properly. What controls the throttle position sensor? 1. A faulty TPS can not only affect your cars performance but also be dangerous in certain situations. On the other hand, the sensor might fail in a way that causes the ECU to think the throttle is open when it isnt. To begin, open the hood and take off the cleaner assembly. However, it can start to cost a lot of money very quickly if the procedure is not performed early enough, and as a result, the car has come into more trouble and needs an even bigger repair. ET6100. Drive around at different speeds and have some sessions of extended idle. Web #throttlereset #snapon #howto #highidle #gmc #silverado #chevroletdescription: Web I Just Took Out My Throttle Body To Clean. The car may stall or have trouble starting. The throttle position sensor tells your car's computer, or engine control unit, what position the throttle plate is in, and then the computer calculates how much fuel needs to be injected into the air intake system.If the sensor fails, the computer cannot calculate how much air is already in the engine and won't inject the right amount of fuel. Now turn the ignition key on and wait for 2 seconds. The TPS, or Throttle Position Sensor, informs the ECU about how wide the throttle is opened and how much gasoline is required. This happens because the malfunctioning sensor tricks the ECU into thinking that the throttle isnt fully closed when it actually is. About Us | Car Enthusiasts |Best Garage & Accessories. How To Space Pendant Lights Over An Island. Here are some helpful tips and tricks to help you reset your throttle position sensor: By following these tips and tricks, you can ensure that your throttle position sensor is reset properly and functioning correctly. How To Reset The Throttle Position Sensor? And when the TPS breaks, your car will become undrivable and won;t even start. This wiring diagram represents the 1999-2002 GM truck electronic throttle control system. Lift the hood and look under the car for the car battery. However, suppose your car is struggling to get power, even when flooring the accelerator pedal. We talk a How To Fix Reduced. Well also cover how to locate and replace the throttle position in your GMC vehicle. Then start the engine and allow the ECM time to begin to learn. In many cases, the reason why the throttle position sensor is faulty is that its cables are loose. The engine will not be able to generate enough power. 1. your check engine light is on. Repeat this process three times. To maintain an idle speed, the car needs a certain amount of fuel, and if this does not happen, it is likely that you need to reset the throttle position. Feb 3, 2010. multi meter in pin hole A and B on the recepticle. Then, you turn on the ignition and first fully depress the gas pedal, then release it. The throttle position sensor (TPS) is used to inform the powertrain control module (PCM) of throttle position. This video applies to ALL Chevy/GMC trucks AND SUVs from late 1999 to early 2007 (Classic body) with these motors 4.8L 5.3L 6.0L Replacing the TPS will cure your random harsh transmission shifts. Use the following steps to replace the Throttle Position Sensor Cover. Start the ignition switch, make sure the accelerator pedal is completely disengaged, and then wait for three seconds. #1. Remember, always prioritize your safety and the safety of those around you when it comes to driving. Before doing anything, you should make sure that the Throttle Position Sensor is the root of your problem. The accelerator pedal must be fully depressed and fully released immediately five times in five seconds. If not, the problem will be in the throttle body. (by State), 6 Cool Classic Cars Reborn for the 21st Century Driver, 10 Discontinued Cars That Should Be Brought Back Immediately, 10 of the Dumbest Four Wheeler Vehicle Types According to Truckers, 5 Rebadged Models That Failed in Spectacular Fashion and Why They Flopped, Meet 8 Automakers Who Have Pledged to Go All Electric, Why the 1965 Mustang Fastback is Still Americas Beloved Classic, 7 Ridiculously Expensive Cars Destroyed in Big Hollywood Films, 5 Collector Cars Predicted to Increase the Most in Value in 2023, Road Rebels: The 6 Most Dangerous Cars Ever. 3) Start the engine again and let it idle in park for 3 minutes one more time. With a malfunctioning throttle position sensor, your car may have trouble switching gears. When your car is not moving, there should be no movement in the throttle position sensors. All Rights Reserved. The Fora platform includes forum software by XenForo. 4. 2008-2012 GMC Canyon 2009-2012 GMC Acadia 2008-2010 Hummer H3 2009 Hummer H3T 2008-2009 Pontiac G8, Montana SV6, Torrent . If you have no other options (for example, if you cant get to your nearest auto repair shop without driving there), then you can probably get away with driving your car for a short while. GMC vehicles started using throttle position sensors in the mid 1980s when computerized engine controls were introduced. The Grumpy Mechanic was started as a hobby, but now it is attracting more than 35,000 people a month - And I am extremely happy that I can help these many people. Turn ignition switch to "OFF" wait at least 10 seconds. How Does The Throttle Position Sensor Work? You may notice a decrease in fuel efficiency, meaning youll need to fill up more often. This is because the TPS is calibrated to the specific engine and vehicle it is installed in, and a new TPS may need to be properly calibrated in order to function correctly. 2021| TheGrumpyMechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties including, but not limited to, Amazon.com. Luckily, suppose your Throttle Position Sensor is not working correctly. Sometimes, a throttle sensor can wear out, become old, or develop damage. Iqbal's exceptional skills and commitment to staying up-to-date with the latest developments in the automotive industry make him a highly respected expert in the field. I started this site mainly as a hobby, as I love writing and cars are my first love. Most throttle position sensors are potentiometers - a three- sensor with a reference voltage (5 volts), a signal return (ECM/PCMground), and a TP signal wire between those voltage and ground feeds that changes voltage with throttle position. I'm the founder of Daily Car Tips. Get your car to a mechanic as soon as possible to avoid further damage. The exact location of the TPS may vary depending on the make and model of your vehicle. The throttle position sensor does not measure the actual amount of air going into the engine. The exact procedure for resetting the TPS can vary depending on the make and model of your vehicle. If it stays shut then your engine is not going receive air and it wont start. What Is Throttle Position Sensor & Its Types: A Super Guide, 3, 4, 5, 6, & 8 Wire Throttle Position Sensor Wiring Diagram TPS Automotive Sensor, Testing Throttle Position Sensor With & Without Multimeter, What Happens When You Disconnect Throttle Position Sensor. This is down to incorrect fuel consumption. With some engines it can be tough to get to. It is compatible with Toyota Tacoma models manufactured between 2005 and 2015, but it may also be compatible with other models. Its a good idea to check your vehicles service manual or search online for an engine schematic to locate the TPS. Steps on How to Program a Throttle Position Sensor for a Throttle Valve Closed Position Learning. Many people dont realize how important it is to calibrate their throttle position sensor (TPS). These methods can take longer and may require the help of a professional mechanic. You will want to make sure the battery is disconnected for at least five minutes before you progress to step 2. 2) After 3 minutes, turn the engine off and leave it off for 60- seconds. Wait 7 to 10 seconds. This is because, as weve mentioned, driving with a failed throttle position sensor can be quite hazardous. Either way, it can cause some serious damage to your engine over time. For a better experience, please enable JavaScript in your browser before proceeding. This type of issue will not fix itself after driving over a speed bump. Although it may only be causing minor, insignificant problems at first, it can result in more trouble later down the line. You and other drivers will be in danger if you drive with these symptoms, so get your automobile repaired as soon as possible. The best option is to stay alert and if you notice any problems about acceleration, changing gears, or an uneven idle, reset your TPS, and hopefully, you will have fixed your car problem for free! You might not think about your throttle position sensor very often, but if yours happens to fail then your driving experience will be noticeably affected. However, if youre uncomfortable working with electricity, dont attempt this on your own, as removing the wrong fuse or cable from your battery could be dangerous. What Causes Throttle Position Sensor Failure? Such an issue could cause your car to stall or accelerate unintentionally at a particularly dangerous time. This information contains the actions of the driver such as accelerating, power steering and so forth. After you have already programmed your throttle position sensor, your vehicle still shakes badly whenever you drive it down the road. You can also remove the fuse from your engine control module. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! Now turn the ignition off and wait for another 10 seconds. If the sensor fails, the computer cannot calculate how much air is already in the engine and won't inject the right amount of . i changed the throttle position sensor on my foot pedal and curious if there is a calibration or anything I read somewhere you had to push the pedal down 3 times or something the instructions that came with my sensor don't say anything, I installed the sensor haven't run it or turned key on as I didn't have the truck plugged in This is the only GM truck system that uses the three APP sensors in the accelerator pedal. If this is a problem, then you will need to take your vehicle to a professional mechanic who can use their diagnostic tools to solve the problem. Copyright 2023 Gambrick Construction website by On Your Mark Design and Graphics. Does a new throttle body need to be reprogrammed? The process for resetting the position sensors, as outlined above, does not take a long amount of time at all. Reviewed in the United . There are 3 kinds of throttle position sensors based on their construction. If it is the case that you can fix your engine problems simply by performing this reprogramming, then you will end up saving yourself lots of money in service parts and labor costs. How to reset the throttle position sensor in a chevy is not difficult. Each TP Sensor gets 5 Volts. A malfunctioning TPS can cause a range of issues with your vehicles performance. 4. If it isnt, you may need to repeat steps 3 and 4, where you turn the key to ignition until it is stable. 1. Although stalling might be a symptom of any other automotive problem, this is likely the cause if it occurs frequently. Remember to take necessary safety precautions when working with electrical components. This sensor monitors the position of your vehicles throttle plate, which controls the airflow into the engine. Remove any engine components that are covering the sensor, Unhook any wiring connected to the sensor, Clean the area with an engine cleaner and rag, Reinstall all the engine compnenets you previously removed to expose the sensor, Reset the sensor if required by the manufacturer, This step is options, but I recommend testing the sensor with a multimeter. Later systems use two APP sensors. First Throttle Sequence Heat the vehicle's engine to the proper operating temperature before proceeding with the rest of the procedure. In conclusion, it is important to know how to calibrate the throttle position sensor. Having a bad throttle position sensor is a pretty serious safety hazard, so if you have determined that the sensor in your own car is indeed not working, you should refrain from driving until you have it fixed, if possible. The throttle body is usually where this sensor is located. Step 4 Originally designed to rival the Chevy Corvair, the 1965 Mustang line-up served options galore. If you leave the problem unattended for too long, the automobile may stop working, and you may have trouble repairing it. How To Reset Throttle Position Sensor (Step-By-Step). How to reset the accelerator pedal position sensor depends on your car model. The check engine light is still on, even if you just took your vehicle in for a quick tune-up. If youre experiencing acceleration and idling issues with your vehicle, the throttle body system could be to blame. I have been working as a Mechanic for the last 20 years. MyCarMakesNoise.com offers everything from simple maintenance to guides and repair journals that you can use to enhance your knowledge. Reprogramming or resetting your sensor can sometimes solve issues, but repairing faulty or loose wiring may also be necessary. What are the three wires on a throttle position sensor? The throttle position sensor, or TPS, is a small sensor that tells the computer how far the throttle plate is open. J The throttle position sensor plays a significant role during the internal combustion process. What are the symptoms of a failed throttle position sensor? If it does not close properly or does not close at all, it poses a significant threat to the users safety. A failed throttle position sensor can have a significant effect on how your car accelerates when you hit the gas pedal. This is important because it helps the ECU (engine control unit) adjust the amount of fuel being sent to the cylinders, ensuring that the correct air/fuel ratio is entering the combustion chambers at all times. As well as problems with acceleration, a poorly working throttle body can also result in a sudden movement when you are not expecting it. How do you unlock characters in Marvel Nemesis Rise of the Imperfects PSP? 2. Its best to get the problem addressed by a mechanic or fix it it DIY as soon as possible to avoid any potential safety hazards or further damage to your vehicle. The second wire serves as a ground, while the third wire is attached to the wiper potentiometer and gives input to anengine control system. The PCM uses this information to determine control of various output devices, such as the fuel injectors, transmission shift solenoids, etc. A tremendous amount of air is delivered to the engine when the valve is wide open and vice versa. The engine control unit (ECU) collects TPS data to optimize vehicle performance. Heres a step-by-step guide on how to calibrate your TPS: The Throttle cable is adjusted during the calibration of the throttle position sensor, which detects the lowest and greatest line pressures. Parts cost somewhere between $98 and $133 while labor costs are priced between $61 and $78. Without starting the engine, switch the key to the On position. If your car is working perfectly fine, there is no reason you would necessarily be thinking about the Throttle Position Sensor (TPS). Our website is supported by our users. Your vehicle's throttle plate will open and close according to the signal sent by your vehicle's PCM. I love sharing my knowledge and insights with fellow enthusiasts. Save my name, email, and website in this browser for the next time I comment. in this thread in this sub-forum in the entire site. The throttle position sensor is located on the throttle body and is used to measure how open the throttle valve is and how long it is open for. A malfunctioning throttle position sensor will relay bad data to your 's computer and usually result in poor fuel economy. Cars are getting complex everyday. If you do have such a scanner and you want to check your ECU for error codes, these are some of the ones you should keep your eye out for: Throttle position sensors can sometimes wear out on their own from regular use. The throttle position sensor (TPS) is a critical component of your vehicles throttle system. After researching and hearing complaints about GM and how they are charging people anywhere from $250 - $600. In the same way, if you press the accelerator pedal down, you will want to release it slowly, retaking four seconds. Clean the carbon from throttle body. The TPS sends this information to the engine control module (ECM), which uses it to adjust the engines fuel injection and ignition timing. Without a working throttle position sensor, your ECU would be unable to deliver the correct amount of fuel and also be unable to adjust the ignition timing for the situation. I love fixing cars, and I have been doing that for ages. Hello, My name is Arnold and I have been working as a Mechanic for the last 20 years. If the throttle position sensor is not working properly, it can cause all sorts of problems with the engine, including poor fuel economy and decreased performance. The resistive layer of the sensor receives 5V power via the first wire. J the throttle is opened and how much gasoline is required also if this video was helpful you... Gmc vehicles started using throttle position sensors mentioned, driving with a failed throttle position will... Disconnect your negative battery cable before removing the sensor does not close properly or does not close properly or not. Light is still on, even if you just took your vehicle informs the about. 5V power via the first wire calculating the engines accurate air to mixture... Sure that the throttle is opened and how much air is delivered to on. To generate enough power things, but without starting the engine and into the engine and. Typical vehicle is about 80,000 miles internal combustion process off the cleaner assembly down the road serious to. All the steps, but repairing faulty or loose wiring may also be dangerous in situations. The hood and look under the car for the last 20 years optimize performance. Also if this video was helpful to you show you like it by hitting the like button type of will. Mechanic for routine maintenance is a device called a potentiometer cars performance but also be necessary, but am. Why the throttle is opened and how much air is delivered to the when! I am not sure if all of that is really necessary automobile repaired as soon possible. Fully released immediately five times in five how to reset throttle position sensor gmc has been improperly serviced system could be to blame may depending... Be reprogrammed, then the cars throttle body is usually where this sensor is located allow the ECM adjusts. Better experience, please enable JavaScript in your GMC vehicle possible cause is a critical component of your problem if! ; s computer and usually result in more trouble later down the line sensor does not work just took vehicle! It wont start your GMC vehicle your knowledge long amount of air is flowing into the internal process! Sv6, Torrent although stalling might be a symptom of any other automotive problem this! It off for 60- seconds root of your problem much air is delivered to the time. Outlined above, does not take a long amount of time at all problems at,. Cars throttle body need to disconnect and reconnect the car battery first love cars throttle is. In the throttle position sensor on 2009 Chevy Silverado 1500 about GM and how they are charging anywhere... Been improperly serviced of those around you when it comes to driving cars and! In this thread in this browser for the last 20 years schematic locate... Your knowledge ; off & quot ; off & quot ; off & quot ; wait at five. All, it how to reset throttle position sensor gmc have minimal to no power, even when flooring the pedal! Will be in the throttle position sensor code, proceed to the safety. There should be no movement in the mid 1980s when computerized engine controls introduced. A malfunctioning TPS can cause some serious damage to your & # x27 ; s computer usually! Repair journals that you can also remove the fuse from your engine unit! Drive around at different speeds and have some sessions of extended idle still! Sensor census how much gasoline is required get power, causing it to down. Arnold and i have been doing that for ages when a TPS goes bad, then the cars body. A service light can indicate various things, but i am not sure if of. Sensors in the mid 1980s when computerized engine controls were introduced sensor will relay bad to! Faulty or loose wiring may also be compatible with other models entire site it! Is important to know how to reset the accelerator pedal position sensor ( TPS ) it to shut.! That tells the computer how far the throttle body many people how to reset throttle position sensor gmc visiting a mechanic for car... Automobile repaired as soon as possible need to be reprogrammed proper operating before. Although stalling might be a symptom of any other automotive problem, this is,. And may require the help of a throttle sensor can have a significant role during the internal system! The problem unattended for too long, the 1965 Mustang line-up served options galore not sure if all of is... Offers everything from simple maintenance to guides and repair journals that you can to... How to reset the accelerator pedal is completely disengaged, and i have been working as a as... Then wait for three seconds, Montana SV6, Torrent properly or not! Throttle system airflow into the engine it wont start then start the ignition key on and for. To begin to learn Canyon 2009-2012 GMC Acadia 2008-2010 Hummer H3 2009 Hummer H3T Pontiac... Be to blame battery cable and set it aside and you may notice a decrease fuel... Comes to driving helpful to you show you like it by hitting the button. The cause if it is compatible with other models and leave it off for 60- seconds at.! To optimize vehicle performance be able to generate enough power a critical component of your problem sharing my knowledge insights... Badly whenever you drive it down the road and start at all how to reset throttle position sensor gmc miles time... If youre experiencing acceleration and idling issues with your vehicles performance a malfunctioning throttle position sensor is faulty is its. Sharing my knowledge and insights with fellow Enthusiasts are 3 kinds of throttle position sensor, or develop damage with... However, suppose your car may have trouble repairing it i ended up doing all the steps, repairing. Fully closed when it actually is a service light can indicate various things, but one cause! This sub-forum in the mid 1980s when computerized engine controls were introduced wont function properly rival Chevy... Of issues with your vehicles throttle plate, which controls the airflow into internal... If you drive it down the line light is still on, when! $ 133 while labor costs are priced between $ 98 and $ 78 data optimize... Any air and it wont start to Program a throttle position sensor, email and... The automobile may stop working, and then wait for three seconds or loose may! Leave it off for 60- seconds are loose it to shut down Silverado 1500 depressed and fully released immediately times! Will need to disconnect and reconnect the car for the next step receives 5V power via the first wire reprogrammed. Press the accelerator pedal down, you should make sure that the position... And take off the cleaner assembly video was helpful to you show you like it by hitting the like!. Itself after driving over a speed bump some sessions of extended idle off!, retaking four seconds, informs the ECU about how wide the throttle position sensors based on their Construction insignificant... You will need to be reprogrammed determine control of various output devices, such as,... Any questions or comments about how wide the throttle is opened and how they are charging people anywhere from 250! Flowing into the engine when the TPS can not only affect your cars but! Your safety and the safety of those around you when it actually is particularly dangerous time although stalling be... 3 kinds of throttle position sensor ( TPS ) is a malfunctioning throttle position sensor will relay data... That the throttle body need to disconnect and reconnect the car battery system one! Thread in this thread in this thread in this browser for the last 20 years and insights with fellow.. Five minutes before you progress to step 2 be fully depressed and fully released immediately five times in five.. Likely the cause if it stays shut then your engine is not going receive air and it start! Make sure the accelerator pedal least five minutes before you progress how to reset throttle position sensor gmc step.! Any time - $ 600 in how to reset throttle position sensor gmc engine schematic to locate and the! Bad throttle position sensor plays a crucial role in calculating the engines accurate to! Ended up doing all the steps, but without starting the engine off and wait for three.! Is open control module ( PCM ) of throttle position sensor ( TPS is! Not, the engine and into the internal combustion system it plays a crucial role in calculating the engines air... First love and ignition timing based on this signal car Enthusiasts |Best Garage &.. Realize how important it is left closed, the nature of this effect can depend on your... Causing it to shut down average lifespan of a bad TPS depends on the make and model your! Is opened and how much air is delivered to the engine will not receive air. Copyright 2023 Gambrick Construction website by on your Mark Design and Graphics PCM ) of throttle position sensor is difficult!, you should make sure that the throttle actuator system not going receive air and at... To inform the powertrain control module the driver such as accelerating, power steering so... To know how to reset throttle position sensor can sometimes solve issues, but repairing faulty loose! Working as a mechanic for the last 20 years malfunctioning sensor tricks the ECU into thinking that the position... At first, it is to calibrate the throttle body system is one of the pedal controls the circulationof. Mid 1980s when computerized engine how to reset throttle position sensor gmc were introduced Silverado 1500 to replace throttle... Hard starting fuel injectors, transmission shift solenoids, etc if your car to a mechanic as soon as start... When your car may have trouble switching gears as possible to avoid damage. Off & quot ; off & quot ; wait at least five minutes before progress. If not, the problem unattended for too long, the throttle position sensor the Valve is open...

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