According to the Motor Emissions Application Guide, a 1982 Chevy K5 Blazer with a 305 engine is required to be equipped with the following emissions control equipment:
- PCV - Positive Crankcase Ventilation System
- ACL - Air Cleaner Pre-Heat Tube
- AIS - Air Injection System (Pump Type)
- EGR - Exhaust Gas Re-Circulation System
- EVAP - Evaporative Recovery System
- CAT - One (1) Catalytic Converter (OC Type)
- SPARK - Spark Control (DI/HEI Type)
