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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (5 Of 5) >> DTC/Circuit Diagnosis >> Low Pressure Fuel Pump >> Component Function Check

Component Function Check

  1. CHECK LOW PRESSURE FUEL PUMP FUNCTION 
    1. Turn ignition switch ON.
    2. Pinch fuel feed hose SYMBOL with two fingers.
      GNSDB3914Courtesy of NISSAN NORTH AMERICA, INC.

      Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Proceed to Diagnosis Procedure .

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