Hunting-Rough Idle

HUNTING-ROUGH IDLE

Check In Order Shown:

Warm Engine
1. Idle speed control motor.
2. Injectors.
3. Idle air control valve position sensor.
4. Closed throttle position switch.
5. Fuel pressure.
6. Intake air temperature sensor.
7. Engine coolant temperature sensor.
8. Barometric pressure sensor.
9. Evaporative emission purge solenoid.
10. Heated oxygen sensor.

Cold Engine
1. Idle speed control motor.
2. Injectors.
3. Idle air control valve position sensor.
4. Closed throttle position switch.
5. Fuel pressure.
6. Engine coolant temperature sensor.