EGR Control Solenoid: Testing and Inspection

1. REMOVE VACUUM SWITCHING VALVE (VSV).





- Remove the bolt.
- Disconnect the connector and 2 vacuum hoses from the VSV.
2. INSPECT VSV.
- Inspect VSV for open circuit.





- Using an ohmmeter, check that there is continuity between terminals.

Resistance: At 2O°C (68° F): 33 - 39 0hms

- Inspect VSV for ground.





- Using an ohmmeter, check that there is no continuity between each terminal and the body.
- If there is no continuity, replace the VSV.
- Inspect VSV for ground. Using an ohmmeter, check that there is no continuity between each terminal and the body.
- If there is continuity, replace the VSV.
- Inspect VSV operation.





- Check that air does not flow from ports E to F.





- Apply battery positive voltage across the terminals.
- Check that air flows from ports E to F.
- If operation is not as specified, replace the VSV.
3. REINSTALL VSV.