Fuel temperature sensor

FUEL TEMPERATURE SENSOR

This is fitted on the return manifold and detects the temperature of the fuel through an NTC thermistor with a negative resistance coefficient.

The sensor is made with semi-conductor technology; therefore, if the temperature of the sensor increases as the fuel temperature increases, the resistance rating lowers. As the change in resistance is not linear, with the same increase in temperature, it is higher for low temperatures than for higher ones.

1. Resistance
2. Sensor body
3. Supply connector

REMOVAL/REFITTING

• Make sure that the ignition key is in the «STOP» position, then disconnect the battery (-) terminal.

1. Remove the engine oil filler cap.
2. Slacken the fastening screws and remove the engine cover.

• Refit the engine oil filler cap.

1. Disconnect the electrical connection from the fuel temperature sensor.
2. Slacken and remove the fuel temperature sensor from the fuel return manifold pipe.

13 ÷ 16 Nm
1.3 ÷ 1.6 kgm