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Home >> Mercury >> 1989 >> Tracer 2D Hatchback, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Theory/Operation - 4-CYL >> Computerized Engine Controls >> Input Devices (Fuel Injection) >> Blower Control Switch

Blower Control Switch

Informs ECA of alternator load condition. ECA advances idle speed to prevent poor engine idle and increased emissions.

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