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Home >> Jeep >> 1983 >> Cherokee Base, 4.2 C, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 4.2L Feedback Carburetor System >> Operation >> Microcomputer Control Unit >> Notes

Microcomputer Control Unit: Notes

The MCU is located in passenger compartment, behind right-hand kick panel. The MCU monitors the CEC system data sensors and, based upon mode of operation, generates an output control signal to the stepper motor mounted in carburetor. The MCU allows the following 3 modes of operation: