PCSV Inspection

Ignition "OFF".
Disconnect the hose leading from the PCSV to the intake manifold at PCSV.
Using a vacuum pump, apply specified vacuum (Approx. 15 in, Hg) to the manifold side of the valve and verify PCSV holds vacuum.
Ignition "ON" & Engine "OFF".
Install scan tool and select "EVAP PURGE VALVE" on the Actuation Test mode.
Activates "EVAP PURGE VALVE" by pressing "STRT(F1)" key.
Verify PCSV release vacuum while valve is activating (should hear a faint click from PCSV).
Repeat this procedure 4 or 5 times to ensure PCSV reliability.
Is PCSV working properly?
YES:
- Thoroughly check fuel vapor hoses and hose clamp and replace as necessary. Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.
NO:
- Thoroughly check fuel vapor hoses and hose clamps between PCSV and intake manifold. Repair as necessary. If OK, test with a new PCSV and check for proper operation. If problem is corrected, replace PCSV and go to "VERIFICATION OF VEHICLE REPAIR " procedure