Computer Controlled Catalytic Converter System C-4: Description
NOTE:
This system is used on some 1980 Federal and all 1980 California carbureted engines. It is also used on AMC models equipped with 151" 4-cylinder engines (California only).
The Computer-Controlled Catalytic Converter (C-4) system closely controls air/fuel ratio through a feedback system from an oxygen sensor in the exhaust system. The major components of this system include an exhaust gas oxygen sensor, an electronic control module, a special electronically controlled air/fuel ratio carburetor and a three-way catalytic converter.