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Home >> Mazda >> 2023 >> 3 Select, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN M) >> Fuel Temperature Sensor Inspection [SKYACTIV-G (With EGR Cooler)] >> Resistance Inspection

Resistance Inspection

NOTE:
  • The low fuel pressure sensor/fuel temperature sensor cannot be removed as a single unit. When replacing the low fuel pressure sensor/fuel temperature sensor, replace it together with the high pressure fuel pump as a single unit.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
  2. Disconnect the low fuel pressure sensor/fuel temperature sensor connector. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [SKYACTIV-G (WITH EGR COOLER)] .)
  3. Measure the resistance between low fuel pressure sensor/fuel temperature sensor terminals E and C.
    G14580106Courtesy of MAZDA MOTORS CORP.
    FUEL TEMPERATURE SPECIFICATIONS (REFERENCE)

    Fuel temperature (°C {°F}) Resistance (Kilohms)
    -40 {-40} Approx. 44.9
    0 {32} Approx. 5.78
    25 {77} Approx. 2.04
    140 {284} Approx. 0.0719
    G14580107Courtesy of MAZDA MOTORS CORP.