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Home >> Nissan-Datsun >> 2024 >> Sentra S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component/Circuit Diagnosis >> Fuel Tank Temperature Sensor >> Component Inspection
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Component Inspection

  1. CHECK FUEL TANK TEMPERATURE (FTT) SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect fuel level sensor unit and fuel pump harness connector.
    3. Remove "fuel level sensor unit, fuel filter and fuel pump assembly". Refer to Removal and Installation .
    4. Check the resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure, below.
      GNSDB109943Courtesy of NISSAN NORTH AMERICA, INC.
      Fuel level sensor unit and fuel pump Condition Resistance
      Terminal
      5 6 Temperature [°C (°F)] 20 (68) 2.3 - 2.7 kΩ
      50 (122) 0.79 - 0.90 kΩ

    Is the inspection result normal?

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    INSPECTION END

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    Replace fuel level sensor unit, fuel filter and fuel pump assembly (with fuel tank temperature sensor). Refer to Removal and Installation .