Admin How do you reset the throttle position sensor on a GMC Sierra?
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.
Where is the air idle control valve located?
throttle body
Locating the Idle Air Control Valve The IACV is usually located on the intake manifold near the back of the throttle body. Before starting the cleaning process, be sure the vehicle is not running and that the engine is cool.
How do I reset my GM electronic throttle control manually?
Accelerator Pedal Release Position Learning Procedure. Make sure that the accelerator pedal is fully released. Turn ignition switch “ON” and wait at least 2 seconds. Turn ignition switch “OFF” wait at least 10 seconds. Turn ignition switch “ON” and wait at least 2 seconds.
How do you reset the IAC valve on a Chevy Silverado?
If you removed the air intake, ensure you reconnect the MAF sensor (if equipped). Turn the ignition ON and leave on for several seconds then turn the ignition OFF to allow the ECM to reset the IAC valve.
How does the idle air control valve work on a car?
The air gap between the throttle body and the throttle plate is calibrated to allow enough air to pass by it for the engine to run at base idle speed. The IAC (Idle Air Control) valve utilizes the on-board computer to fine tune the idle speed according to engine conditions.
How do you reset the baseline idle on a GM TBI?
How to Reset the Baseline Idle in a GM TBI. Turn off the engine and disconnect the negative battery terminal from the battery using a wrench. Reconnect the IAC valve. Reinstall the air cleaner and remove the paper clip from the ALDL connector. Reconnect the battery terminal after 5 minutes and test drive the vehicle.
How do you adjust the idle speed on a Chevy Silverado?
Unplug the IAC valve located on the passenger side, rear of the throttle body. Start the engine. Insert a T-30 size Torx driver into the Idle adjustment screw that is located behind the plug removed earlier. Turn the screw to adjust the idle speed to 650 RPM +/- 50 RPM.