FUEL PRESSURE SENSOR INSPECTION

PROCEDURE

  1. INSPECT FUEL DELIVERY PIPE (FUEL PRESSURE SENSOR)

    Note:

    • Do not remove the fuel pressure sensor from the fuel delivery pipe.

    • If the fuel pressure sensor is removed, replace the fuel delivery pipe (fuel pressure sensor) with a new one.

    1. Check the fuel pressure sensor output voltage.

      1. A330384C02

        *a

        Component without harness connected

        (Fuel Pressure Sensor)

        *b

        Voltage Applied between Terminals

        Apply 5 V between terminals 1 (VC) and 2 (E2).

        Note:

        • Be careful when connecting the leads as the fuel pressure sensor may be damaged if the leads are connected to the wrong terminals.

        • Do not apply more than 6 V to terminals 1 (VC) or 2 (E2).

        Tip:

        If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.

      2. A326513C04

        *a

        Component without harness connected

        (Fuel Pressure Sensor)

        Measure the voltage between terminals.

        Standard Voltage

        Tester Connection

        Condition

        Specified Condition

        3 (PR) - 2 (E2)

        Pressure not applied to fuel pressure sensor

        Approximately 0.4 to 0.6 V*

        *: The output voltage changes depending on the voltage applied to the terminals.

        If the result is not as specified, replace the fuel delivery pipe (fuel pressure sensor).