FUEL PRESSURE SENSOR INSPECTION

PROCEDURE


  1. INSPECT 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. A000RXUE02
      Text in Illustration
      *a

      Component without harness connected

      (Fuel Pressure Sensor)
      *b Voltage applied between terminals

      Check the fuel pressure sensor output voltage.


      1. 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, use 4 1.2 V nickel-metal hydride batteries or equivalent.

      2. A000SA7E01
        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

        at 25°C (77°F)

        		 Approximately 0.42 to 0.58 V*

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

        Output voltage = (0.08 x Voltage applied to terminals) to (0.12 x Voltage applied to terminals)

        If the result is not as specified, replace the fuel pressure sensor.