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. A01REO7C03
        *a

        Component without harness connected

        (Fuel Pressure Sensor)
        *b Voltage Applied between Terminals

        Apply 5 V between terminals 1 (VC) and 3 (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 3 (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. A01R9BUC06
        *a

        Component without harness connected

        (Fuel Pressure Sensor)

        Measure the voltage between terminals.

        Standard Voltage
        Tester Connection Condition Specified Condition
        2 (PFL) - 3 (E2) Pressure not applied to fuel pressure sensor Approximately 0.56 to 0.94 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).