EGR Vacuum Cut Solenoid

EGR Solenoid:

- Disconnect electrical connector and apply battery voltage to VSV electrical terminals. Air should flow freely between "Y" and "Z" ports. Air should not flow between "X" and "Y" ports.
- Disconnect battery voltage. Air should flow freely between "X" and Y" ports. Air should not flow between "Y" and "Z" ports.
- Replace VSV if it fails this test.