FUEL PRESSURE SENSOR INSPECTION

PROCEDURE


  1. INSPECT FUEL PRESSURE SENSOR

    Note


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

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


    1. Check the fuel pressure sensor output voltage.


      1. A01Q8U7C02
        *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, use 4 1.2 V nickel-metal hydride batteries or equivalent.

      2. A01Q9H0C04
        *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. 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 delivery pipe LH (fuel pressure sensor).