lemon-mirror:
Home >> Infiniti >> 2022 >> QX55 Essential >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1 Of 3) >> System Description >> Component Parts >> Fuel Tank Temperature Sensor

Fuel Tank Temperature Sensor

The fuel tank temperature sensor (FTT sensor) SYMBOL is used to detect the fuel temperature inside the fuel tank. The sensor modifies 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 of the thermistor decreases as temperature increases.

GNSJSBIA6334Z-334Courtesy of NISSAN NORTH AMERICA, INC.
G04080535Courtesy of NISSAN NORTH AMERICA, INC.

Fluid temperature

[ deg.C (deg.F)]

Voltage* (V)

Resistance (kOhm)

20 (68)

3.5

2.3 - 2.7

50 (122)

2.2

0.79 - 0.90

*: These data are reference values on the diagnosis tool.