FUEL PRESSURE SENSOR INSPECTION

PROCEDURE


  1. INSPECT FUEL DELIVERY PIPE SUB-ASSEMBLY (FUEL PRESSURE SENSOR)

    Note


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

    • If a 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. B003WICC04
        *a

        Component without harness connected

        (Fuel Pressure Sensor)
        *b Voltage applied between terminals

        Apply 5 V between terminals 3 (VC) and 1 (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 3 (VC) and 1 (E2).

        Tech Tips

        If a stable power supply is not available, use 4 1.2 V nickel-metal hydride batteries or equivalent.

    2. B003TWXC03
      *a

      Component without harness connected

      (Fuel Pressure Sensor)

      Measure the voltage between terminals.

      Standard Voltage
      Tester Connection Condition Specified Condition
      2 (PR) - 1 (E2) Pressure not applied to fuel pressure sensor Approximately 0.5 V*

      *: The output voltage changes depending on the voltage applied to the terminals. Output voltage = (0.1 x Voltage applied to terminals)

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