EGR Control Solenoid: Testing and Inspection

VSV INSPECTION:
1. REMOVE VSV.
- Disconnect the following connector and hoses:



1. VSV connector.
2. Vacuum hose (from EGR vacuum modulator) from port E of VSV.
3. Vacuum hose (from throttle body)from port G of VSV.



- Remove the bolt, and disconnect the VSV from the intake manifold.
- Disconnect the clamp from the EGR vacuum modulator, and remove the VSV.

2. INSPECT VSV.
a. Inspect VSV for open circuit.



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

Resistance (Cold): 33 - 39 0hms

- If there is no continuity, replace the VSV.

b. 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.

c. Inspect VSV operation.



- Check that air flows from port E to port G.



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


3. REINSTALL VSV.



- Connect the EGR vacuum modulator to the EGR vacuum modulator.
- Install the VSV with the bolt and screw.
- Connect the following connector and hoses:



1. VSV connector.
2. Vacuum hose (from EGR vacuum modulator) to port E of VSV.
3. Vacuum hose (from throttle body) to port G of VSV.