How do you calibrate a GM throttle position sensor?
Have an assistant press the “up” key on the COMPUSHIFT Mini to start the calibration process. Pull the TV cable smoothly as far as it will easily travel, hold it for a second, then release it smoothly. You have five seconds to do this. During the calibration process, a 5-second timer counts down and shows on screen.
How do you calibrate a throttle position sensor on a Chevy?
To recalibrate the ECM and accelerator pedal, the ignition switch must be in the ON position and then the accelerator pedal must be slowly and fully depressed from idle to full throttle. Repeat the procedure three times.
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 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 does a GM TPS sensor work?
Like the majority of throttle position sensors on modern fuel injected cars and trucks nowadays, the GM TPS is a three wire sensor. Each wire provides a specific type of signal to the TPS or to the PCM (Powertrain Control Module=Fuel Injection Computer). Below are the circuit descriptions of each:
What is a throttle position sensor (TPS)?
Throttle position sensors (TPS) are usually located on the large butterfly valve that controls airflow into and out of an engine, called the throttle-body.
How do I adjust the throttle position sensor?
Some throttle position sensors are adjustable. In order to adjust the TPS, you will need a scan tool (or laptop/PC running scan tool software) or a digital volt meter. You will also need the proper tool to loosen the retaining screws. If you have a scan tool, all you need to do is pull up the TPS voltage data.
What to do if your GMC Sierra has a bad TPS?
Though this can happen to any car, many GM owners have reported such a failure. The TPS must be adjusted (rotated) so that it reads idle and full-throttle positions properly, or it may appear to be malfunctioning. Try adjusting the TPS before replacement to save a few dollars.