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Home >> Buick >> 1985 >> Regal Base, 4.3 V >> Repair and Diagnosis >> Engine Performance >> System >> Diesel CEC System - W/Internal EGR (Fwd) >> Operation >> Diesel Electronic Control Module (ECM)

Diesel Electronic Control Module (ECM)

Diesel ECM is an engine controller that monitors engine operating conditions through the following input sensors: engine RPM, Vehicle Speed Sensor (VSS), Manifold Absolute Pressure Sensor (MAP), Metering Valve Sensor (MVS), engine temperature, and 4th gear input. After analyzing input sensor signals, ECM controls EGR, EPR, TCC and system diagnosis.