The Engine Control Unit (ECU) is a vital component in modern vehicles that controls various aspects of the engine's operation. It monitors and regulates engine functions such as fuel injection, ignition timing, and emission controls to ensure optimal performance and efficiency. While the ECU focuses primarily on engine functions, the PCM provides comprehensive control over the entire powertrain system. This distinction is crucial in understanding the complexity and efficiency of modern automo...

The Engine Control Unit (ECU) is a vital component in modern vehicles that controls various aspects of the engine's operation. It monitors and regulates engine functions such as fuel injection, ignition timing, and emission controls to ensure optimal performance and efficiency. While the ECU focuses primarily on engine functions, the PCM provides comprehensive control over the entire powertrain system. This distinction is crucial in understanding the complexity and efficiency of modern automo...