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Home >> Geo >> 1994 >> Metro Base, 2D Hatchback, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Crank Signal

Crank Signal

Engine start signal, sent from starter circuit, is used by ECM to determine when engine is cranking. ECM uses crank signal to control fuel pump and injector.

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