The engine control module (ECM), also known as the powertrain control module (PCM) or engine control unit (ECU), is a crucial component in a vehicle’s overall performance and functionality.
This small computer is responsible for monitoring and controlling various components within the engine to ensure optimal performance and efficiency. The ECM works by receiving input from sensors throughout the vehicle, such as the oxygen sensor, mass airflow sensor, throttle position sensor, and more. These sensors provide data on various engine parameters, such as air/fuel …
