Corolla Wagon L4-96.8 1587cc 1.6L DOHC (4A-FE) (1996)
Manifold Pressure/Vacuum Sensor: Testing and Inspection
MAP SENSOR INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF MAP SENSOR
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Disconnect the MAP sensor connector.
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Turn the ignition switch ON.
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Using a voltmeter, measure the voltage between connector terminals VC and E2 of the wiring harness side.
Voltage: 4.5 - 5.5 V
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Turn the ignition switch OFF.
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Reconnect the MAP sensor connector.
2. INSPECT POWER OUTPUT OF MAP SENSOR
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Turn the ignition switch ON.
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Disconnect the vacuum hose on the air intake chamber side.
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Connect a voltmeter to terminals PIM and E2 of the ECM, and measure the output voltage under ambient atmospheric pressure.
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Apply vacuum to the MAP sensor in 13.3 kPa (100 mm Hg, 3.94 in. Hg) segments to 66.7 kpa (500 mmHg, 19.69 in.Hg).
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Measure the voltage drop from step (c) above for each segment.
Voltage drop:
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Reconnect the vacuum hose to the MAP sensor.