E
Electronic Fuel Injection System - A system that injects fuel into the engine and includes anelectronic control unit to time and
meter the fuel flow
Electronic Ignition System - An ignition system that uses transistors and other semiconductor devices as an electronic switch
to turn the primary current on and off.
Emissions (Exhaust) - Toxic gases created when an engine burns gasoline, emitted in the form of unburned hydrocarbons,
carbon monoxide and oxides of nitrogen.
F
Four Wheel Drive (4WD) - In a Four Wheel Drive System, a secondary transmission assembly, called a transfer case, is
driven from the main transmission. The transfer case distributes power to both axles to drive all four wheels. It is the heart of
the Four-Wheel Drive system. Four-Wheel Drive can be full-time, in which power is delivered to both axles at all times or part-
time, where the driver selects two or four-wheel drive. Four wheel drive is often combined with independent suspension
systems and off-road type tires to enhance drivability on rough, off-road terrain, or on-road drivability in unfavorable driving
conditions.
Front-Wheel Drive (FWD) - A drive system where the engine and transaxle components apply the driving force to the front
wheels rather than the rear wheels. Benefits of Front-Wheel drive include: Maximized passenger space, enhanced cargo area,
excellent drive traction; particularly on wet or slippery surfaces, since the drive is through the front wheels, which carry a heavier
load.
Fuel Injection - A method of delivering fuel under pressure into an engine's combustion chamber. Fuel injection systems can
be single-point, multi-point, etc. Replaces carbureted system.
Fuel Injection, Electronic - A computer-controlled method of delivering fuel under pressure. The computer monitors signals
from coolant temperatures, manifold vacuum, exhaust oxygen sensor, and engine cranking sensor. It "tells" the injectors to
release and adjust the fuel to yield an air/fuel mixture assuring engine operation well matched with emission requirements,
optimum fuel economy and overall vehicle performance.
Fuel Pump - A mechanical or electrical device that draws fuel from the fuel tank and delivers it to the carburetor or injectors.
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