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Home >> Toyota >> 1992 >> Celica Liftback L4-132 2164cc 2.2L DOHC (5S-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Manifold Pressure/Vacuum Sensor >> Testing and Inspection >> Component Inspection
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Component Inspection

Vacuum Sensor Connector Identification:





Inspect Power Source Voltage Of Vacuum Sensor
- Disconnect the vacuum sensor connector.
- Turn the ignition switch ON.
- Using a voltmeter, measure the voltage between connector terminals VCC and E2 of the wiring harness side.

Voltage: 4.5 - 5.5 V

- Reconnect the vacuum sensor connector.



Vacuum Sensor Inspection:





Inspect Power Output Of Vacuum Sensor
- Turn the ignition switch ON.
- Disconnect the vacuum hose of the intake manifold (chamber) side.
- Connect a voltmeter to terminals P M and E2 of the ECU, and measure and record the output voltage under ambient atmospheric pressure.
- Apply vacuum to the vacuum sensor in 13.3 kPa (100 mmHg, 3.94 in.Hg) segments to 66.7 kPa (500 mmHg, 19.69 in.Hg).
- Measure voltage drop for each segment.

Sensor Voltage Drop:




Sensor Voltage Drop
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