Evaporative Vapor Pressure Sensor: Testing and Inspection

EVAP CONTROL SYSTEM PRESSURE SENSOR




1. Remove EVAP control system pressure sensor with its harness connector connected.

CAUTION: Never apply force to the air hole protector of the sensor if equipped.

2. Remove hose from EVAP control system pressure sensor.
3. Install a vacuum pump to EVAP control system pressure sensor.







4. Turn ignition switch "ON" and check output voltage between ECM terminal 60 and ground under the following conditions.

CAUTION:
- Always calibrate the vacuum pump gauge when using it.
- Do not apply below -20 kPa (-150 mmHg, -5.91 inHg) or over 20 kPa (150 mmHg, 5.91 inHg) of pressure.
- Discard any EVAP control system pressure sensor which has dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such a concrete; use a new one.

5. If NG, replace EVAP control system pressure sensor.