Possible Cause
- Harness or connectors
- Mass air flow sensor circuit is open or shorted.
- Sensor power supply 2 is shorted.
- Mass air flow sensor
- Intake valve timing control solenoid valve
- EVAP control system pressure sensor
- Intake air leaks
- Intake air temperature sensor
- Each sensor, connected with sensor power supply 2 circuit
- Electric throttle control actuator
- PCV hose air leak
- Purge hose air leak
- Throttle deposit