Throttle Body Cleaning
- Check for damage to the air cleaner.
- Remove the throttle body, K20A2/K20Z1 engines (see THROTTLE BODY REMOVAL/INSTALLATION ), K20A3 engine (see K20A3 ENGINE ).
- Clean off any carbon from the throttle valve and inside of the throttle body with throttle plate and induction cleaner.
- Install the throttle body, K20A2/K20Z1 engines (see THROTTLE BODY REMOVAL/INSTALLATION ), K20A3 engine (see K20A3 ENGINE ).
- Do the ECM/PCM idle learn procedure, 2002-2004 models (see ECM/PCM IDLE LEARN PROCEDURE ), 2005-2006 models (see ECM/PCM IDLE LEARN PROCEDURE ).