High Idle Speed At Normal Operating Temperature

Check the following components or conditions:

• Stored trouble codes.
• Throttle valves operate smoothly.
• Fast idle cam releases from roller.
• Air intake system for leaks.
• Throttle sensor and idle speed.
• Air by-pass solenoid operation.
• Ignition timing.
• Anti-afterburn valve operation.
• By-pass Air Control System (BAC) operation.
• Dashpot operation.
• Airflow meter operation.
• Intake air temp. sensor in airflow meter.
• ECU operation.