EGR Control Solenoid: Testing and Inspection

NOTE: When disconnecting vacuum hoses, place identification marks on them for proper re-connection.




1. Disconnect the vacuum hose (yellow stripe, green stripe, white stripe) from the solenoid valve.
2. Disconnect the harness connector.




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




4. Check air tightness by applying a vacuum with voltage applied directly from the battery to the EGR control solenoid valve and without applying voltage.




5. Measure the resistance between the solenoid valve terminals.

Standard value: 36-44 Ohms @ 20°C (68°F)