Automotive Acronyms E

Acronym	Definition	Notes / What Is / Who Is
EBCM	electronic brake control module	Controls ABS and TCS
EBTCM	electronic brake traction control module	Same as EBCM, depending on OEM
EC	engine control	ECM / PCM / CPU
ECL	engine coolant level	The amount of antifreeze in the cooling system.
ECM	engine control module	The brain or CPU of the system
ECT	engine coolant temperature	A ECM sensor
EEPROM	electronically erasable programmable read only memory chip	Coded chip located in the ECM
EFC	electronic fuel control	Various sensors that send signals to the ECM that controls FI
EFE	early fuel evaporation	Improves cold engine performance by heating intake air with a electric grid.
EFI	electronic fuel injection	Injects fuel from a throttle body, the same location where a carburetor would be mounted on a intake manifold. The induction mixture passes through the intake runners like a carburetor system.
EGR	exhaust gas recirculation	Injects air or recirculated exhaust gas back into the exhaust manifold. An emission control.
EGRT	EGR temperature	Monitors temperature of the EGR valve.
EI	electronic ignition	Uses solid-state semiconductors to control and apply ignition spark.
EM	engine modification	Changing engine performance.
EMI	electromagnetic interference	magnetic flux activity that comes from car stereo systems, alternators, cooling fan motors, etc.
EOS	exhaust oxygen sensor	O2 sensor
EPA	Environmental Protection Agency	Monitors the government 1990 Clean Air Act that enacted OBD / OBD 2
EPROM	erasable programmable read only memory	Coded chip located in the ECM
EUCAR	European Council for Automotive Research and Development	European body for collaborative automotive and road transport R&D (research and development)
EVAP	evaporative emission system	Prevents gasoline vapors from the fuel system / gas tank escaping into atmosphere. Makes it a closed system CL.

Note: An Acronym is a abbreviation that is formed using the individual letter components in a phrase, name, organization or thing. Listings on this page are used throughout the automotive industry.

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