Fuel Control

Electronically Fuel Controlled (EFC) carburetor system is a computerized fuel control system. The EFC system controls engine operation and lowers exhaust emissions while maintaining good fuel economy and driveability. EFC control unit controls many engine related systems to constantly adjust engine operation.

The EFC system is primarily an emission control system, designed to maintain an ideal air/fuel ratio of 14.7:1 under all operating conditions. EFC system uses a duty solenoid to constantly adjust air/fuel mixture.