EGR Control Solenoid: Testing and Inspection

PROCEDURE

1. Remove Vacuum Switching Valve (VSV)





2. Inspect VSV for open circuit. Using an ohmmeter. check that there is continuity between the terminals.

Resistance: 33 - 39 Ohms at 20°C (68°F)

If there is no continuity, replace the VSV.





3. 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.
4. Inspect VSV operation.





 Check that the air flows from ports E to G.





 Apply battery voltage across the terminals.
 Check that the air flows from port E to the gas filter. If operation is not as specified, replace the VSV.
5. Reinstall VSV