Auxiliary Air Regulator
- Disconnect hoses from auxiliary air regulator. Use mirror and small flashlight to inspect valve opening. See Fig 1 . At room temperature, valve should be slightly open. Valve should close within 5 minutes after cold engine starts.
- If valve does not operate properly, check for power at connector with engine running. Connect test lamp across connector terminals. If lamp does not light, check fuse and wiring.
- If lamp lights, check resistance of auxiliary air regulator. If no resistance is measured, regulator is defective. Ensure electrical connections are tight and terminals are clean, prior to measuring resistance.