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Home › Volvo › 2012 › C30 T-5 R-Design, Standard Trans › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control Module (ECM) - Description Of Frozen Values And Behaviors › Engine Electrical › Description Of Frozen Values, Engine Control Module (B5254T7; 2008-2013) › Engine Speed (Rpm)

Engine Speed (Rpm)

The engine control module (ECM) calculates engine speed from the impulse sensor signal.

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