With California Emission

1. INSPECT IDLE AIR CONTROL (IAC) VALVE FOR OPERATING SOUND.
- Check that there is a clicking sound immediately after stopping the engine.
- If operation is not as specified, check the IAC valve, wiring and ECM.
2. INSPECT AIR ASSIST SYSTEM.
- Warm up engine.
- Allow the engine to warm up to normal operating temperature.





- Check idle speed.

Idle speed (Transmission in neutral position): 700 ± 50 rpm





- Check IAC Valve Operation.
- With engine idling, pinch the air hose and check that engine speed drops, and then returns back up to idle speed.
- If operation is not as specified, check the IAC valve, wiring and ECM.





3. INSPECT IAC VALVE RESISTANCE.
- Using an ohmmeter, measure the resistance between the terminals (B1 (or B2) to others).

Resistance: 18 - 22 Ohms at 20°C (68°F)

- If the resistance is not as specified, replace the IAC valve.