G643(E) Service Manual 257 Appendix
Abbreviations
ACFM
AFR
BHP
Bi-Fuel
CTS
CNG
Dual Fuel
ECM
FPP
FPV
FTS
FTV
GPM
HEGO
LAT
LPG
MAP
MAT
MIL
MOR
OEM
PHI
RPM
SECM
TMAP
TPS
VDC
VE
WOT
Actual cubic feet per minute at the specified suction conditions
Air fuel ratio
Brake horsepower
Able to operate on either of two fuels
Coolant temperature sensor
Compressed natural gas
Able to run simultaneously on two fuels, e.g. diesel and natural gas.
Often this term is incorrectly used to describe bi-fuel operation.
Spark-ignited engines are typically bi-fuel while compression ignition
engines are dual-fuel.
Engine control module
Foot pedal position
Fuel primer valve
Fuel temperature sensor
Fuel trim valve
Gallons per minute of flow
Heated exhaust gas oxygen (sensor)
Limited-angle torque motor
Liquified petroleum gas
Manifold absolute pressure
Manifold air temperature
Malfunction indicator lamp
Manufacturer of record for emissions certification on the engine
Original equipment manufacturer
Relative fuel-air ratio or percent of stoichiometric fuel
(actual fuel-air ratio / stoichiometric fuel-air ratio)
Revolutions per minute
Small engine control module
Temperature and manifold absolute pressure
Throttle position sensor
Voltage of direct current type
Volumetric efficiency
Wide open throttle
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