- AAV – anti-afterburn valve (Mazda)
- AIR – Air Injection Reaction (GM)
- AIS – Air Injection System (Chrysler)
- CC – catalytic converter
- CCP – controlled canister purge (GM)
- CCV – canister control valve
- CEC – Crankcase Emission Control System (Honda)
- CFC – Chlorofluorocarbons
- CP – canister purge (GM)
- ECS – Evaporation Control System (Chrysler)
- EEC – Evaporative Emission Controls (Ford)
- EECS – Evaporative Emissions Control system (GM)
- EFE – Early Fuel Evaporation system (GM)
- EGR-SV – EGR solenoid valve (Mazda)
- EGRTV – EGR thermo valve (Chrysler)
- EVRV – electronic vacuum regulator valve for EGR (GM)
- HAIS – Heated Air Intake System (Chrysler)
- OC – oxidation converter (GM)
- ORC – oxidation reduction catalyst (GM)
- PAFS – Pulse Air Feeder System (Chrysler)
- PAIR – Pulsed Secondary Air Injection system (GM)
- PVS – ported vacuum switch
- TAC – thermostatic air cleaner (GM)
- TAD – Thermactor air diverter valve (Ford)
- TVS – thermal vacuum switch
- TVV – thermal vacuum valve (GM)
EMISSIONS RELATED (OLDER OEM TERMINOLOGY)
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