Cold Fast Idle Too Low (MIL Works OK, No DTCs Set)

Cold fast idle too low (MIL works OK, no DTCs set)

Diagnostic Procedure:

1. Do the ECM/PCM idle learn procedure. ECM/PCM Idle Learn Procedure

2. Check the idle speed. Testing and Inspection

3. Clean the throttle body. Procedures

Also check for:

- Fuel contamination