8. Check PCSV For Normal Operation

1. Turn ignition switch to OFF position and disconnect the hose leading from the PCSV to the intake manifold at PCSV.
2. Draw a vacuum at the nipple and verify that the PCSV holds vacuum.
3. Turn ignition switch to ON position and ground the PCSV connector terminal 2. (should hear a faint click from PCSV).
4. The Vacuum should bleed off.
5. Repeat this procedure 4 or 5 times to ensure PCSV reliability.

Is PCSV working properly? 

Yes: Go to next step.

No: Repair or replace it.