F 250 4WD Super Duty V10-6.8L VIN S (2001)
FSV: Fuel Shut-off Valve. A component of Natural Gas Vehicles. This valve either allows or prevents Natural Gas flow to the fuel rail.
FSVF: Fuel Shut-Off Valve Fault. Indicates if there is a fault in the FSV circuit. Displayed as YES or NO.
FSVM: Fuel Shut-off Valve Monitor. Monitors operation of the Fuel Shut-Off Valve / circuit.
FTP: Fuel Tank Pressure. Displayed as inches of water, kPa, or volts.
FTP V: Fuel Tank Pressure Voltage. From the FTP transducer.
FUEL PR: Fuel Pressure. Measurement of the force of the fuel delivered via the fuel pump.
FUELPW: Fuel Pulse Width. Displays the commanded pulse width at time of last data update.
FUELPW1: Fuel Injector Pulse Width #1. Corresponds to injectors normally affected by O2S1 (HEGO1).
FUELPW2: Fuel Injector Pulse Width #2. Corresponds to injectors normally affected by O2S2 (HEGO2).
FUELSYS: Fuel System Status (OPEN/CLOSED Loop). Formerly known as LOOP.
Fuel Tank Vapor Valve: A valve mounted in the top of the fuel tank that vents excess vapor and pressure from the fuel tank into the Evaporative
Emission Control System.
FWD: Front Wheel Drive.
GEM: Generic Electronic Module.
GEN: Generator.
GENF: Generator Output Fault.
GENFDC: Generator Field Control Output.
GFS: Generator field signal monitor.
GND: Ground.
GPM: Grams Per Mile. Also known as Gallons Per Minute.
GPS: Global Positioning Satellite.
Green State Vehicle: Formally known as California Emissions. A vehicle that is equipped with California on-board diagnostics.
GSS: Gear Select Solenoid.
GVW: Gross Vehicle Weight.
Hall Effect: A process where current is passed through a small slice of semi-conductor material and a magnetic field to produce a small voltage in the
semi-conductor.
Hard Fault: A fault currently present in the system.
HC: 1. Hydrocarbon. A by-product of combustion and a component of auto exhaust emissions. 2. High Compression.
HCF: Hydraulic Cooling Fan.
HCFD: Hydraulic Cooling Fan Drive.
HFC: Hydraulic Cooling Fan.
HFCF: High Fan Control Fault. Identifies if there is a fault in the HFC circuit.
HFP: High Fuel Pump.
HLOS: Hardware Limited Operating Strategy. A mode of operation where the PCM replaces output commands with fixed values in response to internal
