After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. ET6100. For example, to perform a throttle relearn on a 2008 Silverado 5.3L, select and run the Idle Learn Reset test.
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. ...
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.
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 do you reset the throttle body on a GM?
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 I relearn my electronic throttle body?
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.
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.
What scan tool can relearn?
0:371:44OBDII Relearn Domestic Vehicles - YouTubeYouTubeStart of suggested clipEnd of suggested clipOur engineers have come up with a solution that simplifies domestic vehicle relearn proceduresMoreOur engineers have come up with a solution that simplifies domestic vehicle relearn procedures Attell has developed obd relearn capability from most domestic vehicles. Here's how it works.
How do I reset my GM electronic throttle control manually?
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.
How do you reset the throttle body 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.
Does a throttle body need to be calibrated?
Once you have fitted a Throttle Position Sensor, or TPS, you will need to calibrate it from within MEITE. First, be sure you have correctly wired, and assigned the throttle sensor signal input to "TPS Raw" in the Analog Settings.
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.
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.
What tool to use to test throttle position sensor?
Auto scanner tools. A good scan tool can help you test the throttle position sensor of your car. That’s very important because the throttle position sensor (TPS) is an integral part of the car’s fuel management system. If it fails, the car will lack power and might turn itself off.
What is throttle body?
The throttle body is the silver-colored component on which the throttle position sensor is attached. As you can see, there are cables running to and from the sensor to complete the sensor’s circuit. you can always diagnose both the sensor and its circuit with a scan tool.
How does a TPS work?
It picks up air from the intake, passes it through the mass airflow sensor and into the throttle body. While there, the TPS will continually measure the amount of air. The engine then uses that data, alongside other values like RPM, air temp., and mass air flow in determining how much fuel to inject.
How to check engine light on a car?
Step 1. Pull trouble codes. Using a scan tool, read all the trouble codes present in the car’s ECU memory. Make sure the vehicle is in ignition key on, engine off (KOEO). If you see any throttle position sensor code, proceed to the next step. It will almost always come with the Check Engine Light (CEL). Step 2.
What is a throttle position sensor?
A throttle position sensor is a type of sensor that monitors the air intake of a vehicle’s engine. It’s usually mounted on the butterfly spindle (also known as butterfly shaft) of the throttle body. From there, the sensor can directly and accurately monitor the position of the throttle. The throttle body is the silver-colored component on which ...
When is the throttle valve open?
The valve will be fully open when the pedal is on the floor. Conversely, it will be almost fully closed when you completely release the accelerator. As you manipulate the accelerator, the throttle position controls the amount of air flowing into the engine intake manifold.
Can a TPS valve cause a car to fail?
If the valve remains shut, the car won’t even start. If by chance it does, it can automatically turn off possibly when you’re driving. Worse yet, the bad TPS may cause problems in other engine components, causing the entire engine to fail. Keep in mind that TPS failure can happen slowly and gradually or abruptly.
CbrownGT
Truck threw the code for throttle body sensor (3rd time this has happened in 90k miles of driving). I decided to clean it and it was absolutely filthy considering Throttle body was new 30k ago (pic below). Cleaned the MAF sensor and air filter while I was at it. Put it all back together, code is gone, but I can’t get it to idle correctly again.
1SLOW1500
The Tb relearn is more a idle and drive control to learn the air value. I would also clean the intake tube and the two valve cove vents. Sorry but have to ask....do you have a catchcan ? If so not on the valve cover breather tubes? Also makes me wonder how your maf is doing... Oh and you do not need a any tools for the tb relearn.
CbrownGT
The Tb relearn is more a idle and drive control to learn the air value. I would also clean the intake tube and the two valve cove vents. Sorry but have to ask....do you have a catchcan ? If so not on the valve cover breather tubes? Also makes me wonder how your maf is doing... Oh and you do not need a any tools for the tb relearn.
1SLOW1500
In the tune it says pedal % is what "resets" the tb air flow tables. So as stupid as it sounds you need to wot then let off. Then it can calculate max air flow. In tune we reduce that relearn when we have big cans so we get a recalibration before we data log for fuel tables. Looks like oil....if you work in dust alot maybe a pre filter would help.
mookdoc6
Go back to OEM intake into the fender and use the Heavy Duty AC Delco paper filter. That is all outside contamination adhering to the TB.
Pearl2017
If you have any kind of decent filter that is not dirt/dust from outside IMO. That looks like oily gunk from the engine. The light volotiles go through the engine leaving oily film behind. A catch can or as suggested venting thru a filter to atmosphere would help IMO. Try one of those and you should quickly tell the difference.
CbrownGT
Go back to OEM intake into the fender and use the Heavy Duty AC Delco paper filter. That is all outside contamination adhering to the TB.