How do ECUs, PCMs, and ECMs Work? These control modules receive input from various sensors throughout the vehicle, such as the throttle position sensor, oxygen sensor, and mass air flow sensor. They use this information to make real-time adjustments to fuel injection, ignition timing, and other critical functions to optimize performance and efficiency. In conclusion, understanding the functions and roles of your car's ECU, PCM, and ECM is essential for maintaining optimal performance and ad...

How do ECUs, PCMs, and ECMs Work? These control modules receive input from various sensors throughout the vehicle, such as the throttle position sensor, oxygen sensor, and mass air flow sensor. They use this information to make real-time adjustments to fuel injection, ignition timing, and other critical functions to optimize performance and efficiency. In conclusion, understanding the functions and roles of your car's ECU, PCM, and ECM is essential for maintaining optimal performance and ad...