chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Engine Control Module|Testing and Inspection > < General System Description|Page 1566
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Engine Control Module: Description and Operation
Ignition Signal

    Engine speed is obtained by integrating synchronized ignition signals within the ECM. The engine speed information is used to calculate injector basic
injection time.

Engine Control Module|Testing and Inspection > < General System Description|Page 1566