RPM Too High When Warm

SYMPTOM: RPM Too High When Warm

CHECK
1. Electronic Control Unit (**)
2. Other Idle Controls
3. Electronic Air Control Valve (14)

Numbers in parentheses are the blink codes displayed on back of the ECU. (**) LED on the ECU is not on, or stays on without blinking. See NOTES ON READING DIAGNOSTIC LIST Article for more information. For ECU trouble code component testing procedures see Computers and Control Systems.