Diesel Data: Automotive Repair

Air Injection Vacuum Control Solenoid Valve: Description and Operation

The air injection solenoid vacuum valve is located at the left front corner of the engine. When activated via the air injection relay, the normally closed solenoid valve opens to apply intake manifold vacuum to the air switching valve. The resistance of the solenoid coil is approximately 45 ohms.

Air Injection Solenoid Vacuum Valve: