F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Fuel Tank Pressure Sensor (CNG): Description and Operation
FUEL TANK PRESSURE SENSOR
The fuel tank pressure (FTP) sensor is integral to the gas regulator. It provides information on CNG fuel tank pressure to the AFCM and is also used
to determine the alternative fuel gauge reading.