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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (3 Of 4) >> Component/Circuit Diagnosis >> Fuel Tank Temperature Sensor >> Component Inspection >> VR30DDTT engine
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VR30DDTT engine

  1. CHECK FUEL TANK TEMPERATURE SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
    3. Remove fuel level sensor unit. Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Removal & Installation .
    4. Check resistance between "fuel level sensor unit and fuel pump" terminals by heating with hot water as shown in the figure, below.
      GNSJMBIA0167Z-167Courtesy of NISSAN NORTH AMERICA, INC.

      Terminals

      Condition

      Resistance (kOhm)

      7 and 8

      Temperature [ deg. C (deg. F)]

      20 (68)

      2.3 - 2.7

      50 (122)

      0.79 - 0.90

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace "fuel level sensor unit and fuel pump". Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Removal & Installation .