Grand Marquis V8-4.6L VIN V Flex Fuel (2006)
Fuel Level Sensor: Description and Operation
FUEL LEVEL INPUT (FLI)
NOTE: The Ford GT uses 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 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.
