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

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

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

Do the PCM idle learn procedure PCM Idle Learn Procedure.

Check the idle speed Testing and Inspection.

Test the throttle body Testing and Inspection.

Also check for

Intake vacuum leaks