Cold Fast Idle Too High (MIL works OK, No DTCs set)
Cold fast idle too high (MIL works OK, no DTCs set)
Diagnostic Procedure:
1. Do the PCM idle learn procedure. PCM Idle Learn Procedure
2. Check the idle speed. Testing and Inspection
3. Do the throttle position learning check. Testing and Inspection
Also check for:
- Intake air leaks