Celica Liftback L4-122 1998cc 2.0L DOHC Turbo (3S-GTE) (1992)
Turbo Boost Sensor: Testing and Inspection
Turbocharger Pressure Sensor Inspection
Inspect Power Source Voltage Of Turbocharging Pressure Sensor
- Disconnect the pressure sensor connector.
- Turn the ignition switch ON.
- Using a voltmeter, measure the voltage between connector terminals VC and E2 of the wiring harness side.
Voltage:
4.5 - 5.5 V
- Reconnect the pressure sensor connector.
Checking Turbocharger Pressure Sensor Operation
Inspect Power Output Of Turbocharging Pressure Sensor
- Turn the ignition switch ON.
- Disconnect the vacuum hose on the intake manifold (chamber) side.
- Connect a voltmeter to terminals PIM and E2 of the ECU, and measure and record the output voltage under ambient atmospheric pressure.
- Apply vacuum to the pressure sensor in 13.3 kPa (100 mmHg, 3.94 in.Hg) segments to 66.7 kPa (509 mmHg, 19.69 in.Hg).
- Measure voltage drop for each segment.
Sensor Voltage Drop