Inspection
NOTE: When disconnecting the vacuum hose, make identification marks on them so they can be reconnected to the original positions.1. Disconnect the vacuum hose (yellow and white stripe) from the solenoid.
2. Disconnect the harness connector.
3. Connect a hand vacuum pump to the nipple to which the white-striped vacuum hose was connected.
4. Apply a vacuum and check for air-tightness when voltage applied directly to the EGR solenoid and when the voltage is discontinued.
5. Measure the resistance between the terminals of the solenoid.
Standard value: 36-44 Ohms @ 20°C (68°F)