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 helps ensure optimal performance and efficiency.
This small computerized device plays a crucial role in controlling various aspects of the engine, such as ignition timing, fuel injection, and emissions system. The ECM receives input from various sensors placed throughout the vehicle, such as the throttle position sensor, oxygen sensor, and mass airflow sensor. These sensors monitor the engine’s operating conditions and …
