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Home >> Volvo >> 1991 >> 740 Base, 4D Sedan, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Ignition Control Unit
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Ignition Control Unit

Ignition ECU serves as an input device for fuel injection calculation. Ignition ECU provides information on engine speed, crankshaft position, knocking, etc.