Sensors: The ECU collects data from sensors like the oxygen sensor, mass airflow sensor, and throttle position sensor to monitor the engine's condition. Calculations: Using the input from sensors, the ECU calculates the ideal air-fuel mixture, spark timing, and other parameters to maximize engine performance. Output: The ECU sends signals to various components, such as the fuel injectors and ignition coils, to make adjustments based on the data received. Why is maintaining your ECU impor...

The Powertrain Control Module (PCM) and Engine Control Module (ECM) are terms often used interchangeably, but they serve distinct purposes. The PCM oversees not only the engine but also the transmission system, integrating multiple control modules into a unified unit. On the other hand, the ECM focuses solely on engine-related functions, excluding transmission control. How do ECUs, PCMs, and ECMs Work? These control modules receive input from various sensors throughout the vehicle, such as ...