Idle Speed Fluctuates (MIL Works OK, No DTCs Set)

Idle speed fluctuates (MIL works OK, no DTCs set)

Idle speed fluctuates
(MIL works OK, no DTCs set)

Do the PCM idle learn procedure. PCM Idle Learn Procedure

Check the idle speed Testing and Inspection.

Do the carbon accumulation check Testing and Inspection.

Troubleshoot the A/C signal circuit.

Also check for

Incorrect valve timing or clearance adjustment

Also check for

Intake air leaks