EGR Control Solenoid: Testing and Inspection

EGR SOLENOID CHECK
1. Disconnect the vacuum hose from the EGR solenoid.

NOTE: When disconnecting the vacuum hose, always make sure that it can be reconnected at original position.

2. Disconnect the harness connector.
3. Connect a hand vacuum pump to nipple (A) of the EGR solenoid. (Refer to the illustration at left.)







4. Check airtightness by applying a vacuum with voltage applied directly from the battery to the EGR solenoid and without applying voltage.




5. Measure the resistance between the terminals of the EGR solenoid.

Standard value: 36 - 44 ohms [at 20° C (68° F)]

6. Replace solenoid if resistance is out of specification.