[Boghog]

Abbreviations:

IAC - Idle Air Control Valve

CONV - Conventional Systems
PCV - Positive Crankcase Ventilation
​

EVAP- Evaporative Emission

WU - TWC - Warm Up Three Way Catalytic​

EVAP Canister - Evaporative Emissions Converter Canister

TWC - Three Way Catalytic Converter
COP - Coil on Plug​

ISC - Idle Speed Control Valve

Feel free to add to the list.