Feedback Carburetor System: Description

The feedback system is designed to prevent discharge of harmful gases directly into the open air. The overall system consists of the following major sub-systems: Exhaust gas recirculation (EGR), thermostatic air cleaner (TAC), positive crankcase ventilation (PCV), evaporative emission control system (EECS), early fuel evaporation (EFE), closed loop emission control system, and high altitude emission control system.