ECM
Engine Control Mode
ECT sensor
Engine Coolant Temperature Sensor
EGR system
Exhaust Gas Recirculation System
EGR valve
Exhaust Gas Recirculation Valve
ECU
Electronic Control Unit
EI
Electronic Ignition
EVAP
Evaporative Emission System
4WD
Four-Wheel Drive
FWD
Front-Wheel Drive
GVW
Gross Vehicle Weight
HO2S
Heated Oxygen Sensor
HSS
High Strength Steel
HVAC
Heating, Ventilation, Air Conditioning
HC
Hydrocarbons
IAC valve
Idle Air Control Valve
IAT sensor
Intake Air Temperature Sensor
ICM
Ignition Control Module
KS
Knock Sensor
MAP sensor
Manifold Absolute Pressure Sensor
MFI
Multi-Port Fuel Injection
OBD
On-Board Diagnostics
OHC
Overhead Cam Injection