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Home >> Mercury >> 1980 >> Bobcat Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Feedback Carburetor Electronic Engine Control System >> Description >> Electronically Controlled Feedback Carburetion >> Closed Loop Mode

Closed Loop Mode

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In this mode, each component in the system is sensitive to the other components: carburetor is controlled by vacuum solenoid regulator, which is controlled by MCU in response to a signal from EGO in the exhaust manifold, which is reacting to the mixture from the carburetor. When all components are functioning in this fashion, the system is termed in the Closed Loop Mode.