Mixture Control Unit

Mixture Control Unit:

The Mixture Control Unit is located on the right side of the engine compartment forward of the shock tower. The Mixture Control Unit is the heart of the CIS-E injection system. This is where the air-flow measurement system and the fuel delivery system interact. The Mixture Control Unit measures the engines intake air, and then meters fuel in proportion to that air flow.

The Mixture Control Unit is actually the combination of two separate components: the air flow sensor, and the fuel distributor. The air flow sensor measures the air entering the engine. The fuel distributor, in turn, delivers a proportional amount of pressurized fuel to the fuel injectors.

The Mixture Control Unit is also equipped with an air flow sensor potentiometer to ensure good throttle response when the engine is cold. The system briefly delivers additional fuel when the throttle valve is opened suddenly. The air flow sensor potentiometer sends a signal to the control unit based on sensor plate travel for more information on the air flow sensor potentiometer refer to, COMPUTERIZED ENGINE CONTROLS.