The engine control module (ECM), also known as the powertrain control module (PCM) or engine control unit (ECU), is a crucial component in modern vehicles that plays a key role in regulating the operation of the engine.
The ECM is essentially the brain of the vehicle, continuously analyzing data from various sensors and making real-time adjustments to optimize performance, fuel efficiency, and emissions. One of the primary functions of the ECM is to control fuel injection and ignition timing. By monitoring data such as engine rpm, throttle position, air intake, and coolant …