What is ECM Module?

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A Car ECM (Engine Control Module) Module is a type of electronic control unit that manages the engine's operation and performance in a vehicle. The ECM is responsible for monitoring and controlling various engine functions, including fuel injection, ignition timing, idle speed, and emissions control.

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The ECM receives input signals from various sensors in the vehicle, such as the oxygen sensor, throttle position sensor, and mass airflow sensor. It processes these signals and adjusts engine parameters to maintain optimum performance and efficiency.

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The ECM is usually located in the engine compartment of the vehicle, and it communicates with other systems in the vehicle, such as the transmission control module and the antilock brake system, to ensure smooth and safe operation. ​