Leak Detection Sensor: Testing and Inspection

COMPONENT INSPECTION
1. Remove EVAP control system pressure sensor with its harness connector connected.
2. Remove hose from EVAP control system pressure sensor.




3. Use pump to apply vacuum and pressure to EVAP control system pressure sensor as shown in figure.




4. Check output voltage between terminal (2) and engine ground.
5. If NG, replace EVAP control system pressure sensor.

CAUTION: Always calibrate the vacuum pump gauge when using it.