When it comes to modern vehicles, one of the most important components under the hood is the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM) or Engine Control Unit (ECU).
This small but powerful computer is responsible for controlling various aspects of the engine and ensuring optimal performance, fuel efficiency, and emissions. The ECM is essentially the brain of the vehicle, constantly receiving data from sensors located throughout the engine and making real-time adjustments to various systems to keep everything running smoothly. This includes controlling …