EGR Control Solenoid: Testing and Inspection

California Model Vehicle Only

Testing The EGR Control Solenoid Valve:

1. Disconnect the vacuum hose(s) from the solenoid valve.

2. Disconnect the electrical harness connector.

3. Connect a hand vacuum pump to the nipple which the green striped hose was connected to.

4. Connect jumper leads to the solenoid terminals.

EGR Control Solenoid Valve Voltage Test:

5. While applying vacuum to the solenoid, apply battery voltage directly to the solenoid terminals.
Vacuum should HOLD.

6. Discontinue voltage.
Vacuum should LEAK.

EGR Control Solenoid Valve Resistance Check:

7. Measure the resistance between the terminals of the solenoid valve.
Refer to SPECIFICATIONS/ELECTRICAL