Pathfinder LE 2WD V6-3.3L (VG33E) (1999)
Fuel Temperature Sensor: Description and Operation
The tank fuel temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modities a voltage signal from the ECM.
The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature.
The electrical resistance to the thermistor decreases as temperature increases.