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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0461: Fuel Level Sensor >> Component Function Check >> Diagnostic Test
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Diagnostic Test

  1. PRECONDITIONING

    WARNING:

    When performing the following procedure, always observe the handling of the fuel. Refer to GENERAL PRECAUTIONS .

    TESTING CONDITION: 

    Before starting component function check, preparation of draining fuel and refilling fuel is required. 

    GO TO STEP 2  .

  2. PERFORM COMPONENT FUNCTION CHECK

    NOTE:

    Start from step 8, if it is possible to confirm that the fuel cannot be drained by 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) in advance.

    1. Prepare a fuel container and a spare hose.
    2. Release fuel pressure from fuel line. Refer to WORK PROCEDURE .
    3. Remove the fuel feed hose on the fuel level sensor unit. Refer to REMOVAL AND INSTALLATION .
    4. Connect a spare fuel hose where the fuel feed hose was removed.
    5. Turn ignition switch ON.
    6. Drain fuel by 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.
    7. Confirm that the fuel gauge indication varies.
    8. Fill fuel into the fuel tank for 30 LITER (7-7/8 US gal, 6-5/8 Imp gal).
    9. Confirm that the fuel gauge indication varies.

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

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