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

  1. INSPECTION START 

    Turn ignition switch to START.

    Are any cylinders ignited?

    YES

    GO TO 2.

    NO

    Proceed to Diagnosis Procedure .

  2. CHECK FUEL INJECTOR FUNCTION 

    SYMBOL WITH CONSULT

    1. Start engine.
    2. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT.
    3. Check that each circuit produces a momentary engine speed drop.

    SYMBOL WITHOUT CONSULT

    1. Start engine.
    2. Listen to each fuel injector operating sound.
      G04812223Courtesy of NISSAN NORTH AMERICA, INC.

      Clicking sound should be heard.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Proceed to Diagnosis Procedure .

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