freightliner Workshop Repair Guides

Freightliner Workshop Service and Repair Manuals

Fuel Temperature Sensor|Service and Repair > < Fuel Temperature Sensor|Description
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Fuel Temperature Sensor: Description and Operation
Operation

OPERATION

An negative temperature coefficient (NTC) resistor integrated in the fuel temperature sensor alters it's electrical resistance in line with the fuel
temperature (the resistance drops as the temperature rises). The ECM uses this reading to calculate optimum engine performance under all driving
conditions. If the fuel is to warm, the rail pressure in the system is lowered. The controller quantity of the pressure regulating valve is reduced and the
fuel temperature is lowered.

Fuel Temperature Sensor|Service and Repair > < Fuel Temperature Sensor|Description