Component Inspections

Sensor Voltage Drop:

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.

Checking Sensor Supply Voltage:

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 PIM 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 from step above for each segment.

ECU Connector Identification:

Voltage Drop Chart