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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 4) >> DTC/Circuit Diagnosis >> DTC P0087: Fuel System >> DTC Component Inspection (Quantity Control Valve)
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DTC Component Inspection (Quantity Control Valve)

  1. CHECK QUANTITY CONTROL VALVE-1 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the resistance between ECM harness connector terminals.

      ECM

      Resistance (Ohm)

      +

      -

      Terminal

      75

      76

      0.3 - 1.1

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 2.

  2. CHECK QUANTITY CONTROL VALVE-2 
    1. Disconnect quantity control valve harness connector.
    2. Check the resistance between quantity control valve terminals.

      Quantity control valve

      Resistance (Ohm)

      +

      -

      Terminal

      1

      2

      0.3 - 1.1

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace high pressure fuel pump. Refer to Removal and Installation .