Vibe FWD L4-1.8L VIN 8 (2004)
6. Blow air into the inboard port. The air should NOT flow through the valve and out of the outboard port.
7. Apply battery voltage across the terminals of the EVAP pressure switching solenoid.
8. Blow air into the inboard port and air should flow through the valve and out of the outboard port.
9. Replace the EVAP pressure switching solenoid if the solenoid failed either test.