The engine control module (ECM), also known as the powertrain control module (PCM) or engine control unit (ECU), is a vital component in modern vehicles that is responsible for controlling the engine’s operation and monitoring its performance.
This small electronic module plays a crucial role in the overall functioning of the vehicle, ensuring optimal performance, fuel efficiency, and emissions control. The ECM is essentially the brain of the engine, receiving input from various sensors throughout the vehicle and using that information to adjust and control various systems within the engine. These sensors …