Computerized Emission Control (CEC) System

CEC system closely controls air/fuel ratio through a feedback system from an oxygen sensor in exhaust system. Major components of this system include exhaust gas oxygen sensor, vacuum switches, temperature switches, Micro Computer Unit (MCU), fuel injection system or computer controlled carburetor (carbureted models) to maintain a constant air/fuel mixture. For additional information, see appropriate article in the COMPUTERIZED ENGINE CONTROL section.