These electronic control units are responsible for monitoring and controlling various systems, including fuel injection, ignition timing, emission controls, and many others. The ECM, also known as the engine control unit (ECU), is a critical component of the vehicle's onboard computer system. It gathers data from sensors throughout the engine and other systems to make real-time adjustments to ensure the engine is running smoothly and efficiently. The PCM, on the other hand, is a more comprehe...

These electronic control units are responsible for monitoring and controlling various systems, including fuel injection, ignition timing, emission controls, and many others. The ECM, also known as the engine control unit (ECU), is a critical component of the vehicle's onboard computer system. It gathers data from sensors throughout the engine and other systems to make real-time adjustments to ensure the engine is running smoothly and efficiently. The PCM, on the other hand, is a more comprehe...