MCU Engine Control System: Description
The MCU control system is named for and commanded by a Microprocessor Control Unit. The micro-computer is located in the engine compartment and is capable of controlling engine air/fuel ratios, air injection, and on some models, canister purge, spark retard and idle speed. The system consists of the MCU module, air/fuel control and air injection solenoids, engine sensors, a feedback carburetor, and related circuitry.
NOTE:
The MCU system is used in 1982 in both Ford Motor Co. passenger cars and light trucks. Information contained in this article on inline 6-cylinder engines, applies to light truck applications only.