Absolute Pressure Sensor: Testing and Inspection
COMPONENT INSPECTIONAbsolute Pressure Sensor
1. Remove absolute pressure sensor from bracket with its harness connector connected.
2. Remove hose from absolute pressure sensor.
3. Apply vacuum and pressure to absolute pressure sensor as shown in figure.
4. Check output voltage between terminal (2) and engine ground.
Pressure (Absolute pressure) / Voltage (V)
1066 kPa (800 mmHg, 31.50 inHg) / Approximately 4.6
13.3 kpa (100 mmHg, 3.94 inHg) / Approximately 0.5
CAUTION: Always calibrate the vacuum pump gauge when using it.
5. If NG, replace absolute pressure sensor.