Chevrolet Silverado 1500 2008
This procedure is performed after the throttle body is cleaned or replaced.
Using the GM diagnostic scan tool, or equivalent, refer to the on-screen reprogramming directions and perform the throttle/idle learn procedure.
- With the ignition ON and the engine OFF, perform the idle learn reset in mode setup, using the scan tool.
- Start the engine and monitor the TB Idle Airflow Compensation parameter.
- The value should equal zero percent and the engine should be idling at a normal idle speed.
- Clear any DTC-s.