3000GT VR-4 AWD V6-2972cc 30L DOHC MFI Twin Turbo (1998) Leak Detection Sensor Inspection
Using Scan Tool
HARNESS INSPECTION
Check for continuity of the ground circuit
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Fuel tank differential pressure sensor connector: Disconnected
OK: GO TO STEP 2
NG: Repair the harness. (A2 - 49)
Check for an open-circuit, or a short-circuit to ground between the engine control module and the manifold absolute pressure sensor.
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Fuel tank differential pressure sensor connector: Disconnected
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Engine control module connector: Disconnected
OK: GO TO STEP 3
NG: Repair the harness. (A1 - 93)
Measure the sensor impressed voltage to the manifold absolute pressure sensor.
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Fuel tank differential pressure sensor connector: Disconnected
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Engine control module connector: Disconnected
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Ignition switch: ON
Voltage (V): 4.8 - 5.2
OK: STOP
NG: Repair the engine control module.