Expedition 4WD V8-5.4L SOHC VIN 5 (2005)
Fuel Level Sensor: Description and Operation
Fuel Level Input
FUEL LEVEL INPUT
NOTE: The Ford GT will use a piezoelectric sonar type fuel level sensor. The sensor is located in the tank and the sensor signal is provided as a
communications network message by the instrument cluster to the PCM.
The fuel level input (FLI) is either a hard wire signal input to the PCM from the fuel pump (FP) module or a communications network message. Most
vehicle applications use a potentiometer type FLI sensor connected to a float in the FP module to determine fuel level.