FUEL PRESSURE SENSOR INSPECTION


  1. INSPECT FUEL PRESSURE SENSOR

    Note


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


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


    1. Check the fuel pressure sensor output voltage.


      1. B000NANE01
        Text in Illustration
        *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) and 2 (E2).

        Tech Tips

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

      2. B000KLAE01
        Text in Illustration
        *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 sub-assembly (fuel pressure sensor).