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Home >> Infiniti >> 2018 >> QX80 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 2) >> Component/Circuit Diagnosis >> Fuel Level Sensor >> Component Function Check
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Component Function Check

  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 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 SYMBOL (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 SYMBOL (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 SYMBOL (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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