All Engines With Rochester E2MC-ME & E4MC-ME Carburetors

The emissions systems used on these engines, provide precise control of air/fuel mixture during all ranges of engine operation. Because of this system control, adjustment procedures must be followed in exact sequence to ensure correct mixture adjustment. Dwell readings from the Mixture Control (MC) solenoid are used for adjustment calibration. If unable to obtain specified readings, refer to ``System Performance Check'' as outlined in the individual system chapters of the Emission Control Section.