The engine control module (ECM), also known as the powertrain control module (PCM) or engine control unit (ECU), is one of the most vital components in modern vehicles.
This small but mighty electronic unit plays a crucial role in managing and controlling the performance of the engine and various other systems within the vehicle. The ECM is essentially the brain of the vehicle, responsible for analyzing data from various sensors and making real-time decisions to optimize engine performance, fuel efficiency, emissions, and overall …