Protege ES L4-1839cc 1.8L DOHC (1997)
Evaporative Vapor Pressure Sensor: Testing and Inspection
TANK PRESSURE CONTROL VALVE (TPCV) INSPECTION
1. Remove the TPCV.
2. Apply pressure or vacuum to port A of the valve by using a vacuum pump, and check for the air flow.
3. Apply battery positive voltage to the valve connector and apply pressure to port A, and verify that air flows smoothly.
4. If not as specified, replace the TPCV.