Idle/Throttle Speed Control Unit: Testing and Inspection

INSPECTION




Air valve
1. Disconnect the air hoses from the air funnel.
2. Blow through the BAC valve from port (A) and check the air flow.

Cold engine: Air flows
Warm engine: Air does not flow

3. Replace if necessary.




Idle air control valve
1. Disconnect the BAC valve connector.
2. Connect an ohmmeter to the BAC valve terminals.
3. Check the resistance.

Resistance: 10.7-12.3 ohms at 20 °C (68°F)

4. Replace if necessary.