How do you reset the throttle body on a GM?
How to Reset the Baseline Idle in a GM TBI
- Remove the wing nut on top of the air cleaner and lift the air cleaner off the throttle body to access the vacuum lines.
- Remove plug over the idle screw located on the right front of the throttle body by using a hammer to drive a punch into the plug and then ...
- Turn off the engine and leave the ignition key in the "Off" position. ...
How to change the throttle body?
Problems after cleaning the throttle body
- Car requires more power than usual to accelerate from a full stop. ...
- Loud noises while your car is on but in idle. If you notice a loud rumbling noise while your truck or car is stopped at a stoplight, it may not ...
- Air Sensor still forcing check engine light. ...
Can You rebuild throttle body?
If you need to repair your throttle body, and a throttle body assembly is not available for your vehicle, a throttle body repair kit is the perfect solution. At O'Reilly Auto Parts, our throttle body repair kits include all the parts you need to rebuild your original throttle body. Click to see full answer.
How to reset throttle body?
- Perform accelerator pedal released position learning procedure.
- Perform throttle valve closed position learning procedure.
- Perform pre-adjustment procedure.
- Start and run the engine until normal operating temperature is reached.
- Turn the ignition switch to the OFF position.
How do I do the throttle body relearn procedure?
1:112:42Throttle Body Relearn: When Should I Reprogram My Car's ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou might have to let it run for three minutes and then shut the vehicle off. And then run it againMoreYou might have to let it run for three minutes and then shut the vehicle off. And then run it again for three minutes. It depends on the type of vehicle.
How do I reset my electronic throttle control system?
Resetting your electronic throttle control manually can be a tricky job. First, make sure the accelerator pedal is fully released. Next, turn the ignition on and then turn it off and wait for ten seconds. During these ten seconds, be sure the throttle valve is moving by listening for a sound of operation.
Do you have to reset computer after replacing throttle position sensor?
After replacing the throttle body to your engine, if the engine light was on and has a pending code, the code will go away. If the code was a hard permanent code, then the ECM (computer) would need a hard reset.
How do you reprogram a throttle position sensor?
How to Reset Throttle Position SensorPut the key in the ignition.Turn the key to the On position, without cranking the engine. Wait a few seconds, then turn it off.Repeat the second step.Crank the engine.Pull the parking brake.Set the gear lever in Drive.Wait 5-10 minutes.
How do you reset the throttle body on a GMC Sierra?
0:322:05GM Truck Electronic Throttle Body (ETB) Relearn Procedure - YouTubeYouTubeStart of suggested clipEnd of suggested clipNext turn the ignition off for 60 seconds. Then start and idle the engine in Park for 3 minutesMoreNext turn the ignition off for 60 seconds. Then start and idle the engine in Park for 3 minutes again after the 3 minute runtime the engine should be idling normally.
How do you adjust the throttle position sensor on a Chevy?
0:573:46TPS or Throttle Position Sensor Adjustment 1 - YouTubeYouTubeStart of suggested clipEnd of suggested clipBy simply closing or plugging the idle control valve adjusting the throttle screw for a minimum idleMoreBy simply closing or plugging the idle control valve adjusting the throttle screw for a minimum idle speed. And then readjusting the TPS. The desired idle condition can always be met by the engine.
How do you reset the throttle position sensor on a GMC?
The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.
How do you reset throttle body after replacing?
Leave the key off for a moment, turn the key to the "On" position again, wait 3 seconds, and press the accelerator 5 times in 5 seconds. Wait 7 seconds, and hold the accelerator down. The check engine light should start blinking, continue to hold pedal down until it stops blinking. You can then start the car.
What happens if you don't relearn your throttle body?
What happens when you replace the throttle body? If you replace the throttle body, the PCM won't know and will continue to use the adaptive settings as if the carbon buildup is still in place. If you don't do a relearn procedure, the PCM will “hunt” for a new baseline idle.
How do you test a GM accelerator pedal position sensor?
8:3511:19How to Test accelerator Position Sensor - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can also test it and by just tapping into the two signal wires using the actual the ECM.MoreYou can also test it and by just tapping into the two signal wires using the actual the ECM.
What to do after cleaning a GM throttle body?
After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn.
Can you throttle relearn without a scan tool?
Throttle relearn can also be done without a scan tool, essentially by letting the vehicle idle in park for several minutes and allowing time for the ECM to learn. See appropriate service information for vehicle specific procedures and details if you wish to perform a throttle relearn in this way. Information provided by Mac Tools.
How to reset a dtc?
Remove negative battery cable for 20 minutes to reset all DTCs. 2. Start engine, run in park for 3 minutes. -MIL did not come on. -Engine starts at about 1200rpm, then slowly idles down to 800 rpm and back up to a steady 1000rpm. 3. Remove key for 60 seconds. 4. Start engine, run in park for 3 minutes.
Is idle normal while driving?
While driving, the idle was pretty normal , although downshifts came with a noticable surge, especially the 2-1 when coming to a complete stop. Behavior continued to improve over the next several days, and after about 500 miles of driving has returned to what I would consider normal.
How long does it take for an ECM to catch up to a new throttle body?
It will take a few miles of driving for the ECM to catch up to the new throttle body. Assuming it was an OEM replacement, its cleaner than the old one, so the air flow is different. 20 minutes of driving should do the trick...if it doesn't then you have a different problem.
How to clean throttle body?
Clean your throttle body with throttle body cleaner. First disconnect the battery, clean the TB with TB cleaner, must be nice and shiny. When finished, hook the battery back up and drive around for 20 minutes or so with all accessories off, so the computer will relearn a properly functioning throttle body.
What is ECM in a throttle?
The engine control module (ECM) learns the idle position of the throttle plate to ensure the cor-rect idle. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. The idle may be unstable or a DTC may set if the throttle position is not learned.
What happens when the PCM is disconnected?
Anytime the PCM or the battery is disconnected, the PCM looses power, or the PCM is repro-grammed, the PCM's learned idle position is lost. The engine idle is unstable when the learned idle position is lost.