System Description

C4 System 1981:

C4 System 1982:

OPERATION
Reduces undesirable exhaust emissions while providing good fuel economy and engine performance through the use of an Electronic Control Unit (ECU), a Three-Way Catalytic Converter, an exhaust gas oxygen sensor, various engine data senders an a controlled air/ fuel ratio carburetor.

Applications
Used on California emissions models engine and except California models with automatic transmission.