The ECM is similar to the ECU but primarily focuses on managing engine functions. It communicates with sensors to regulate fuel delivery, air intake, and exhaust emissions to optimize engine performance. In conclusion, understanding the functions of ECU, PCM, and ECM in a car is essential for maintaining optimal performance and addressing potential issues effectively. By following the tips outlined in this guide and seeking professional help when needed, you can keep your vehicle running smoo...

The ECM is similar to the ECU but primarily focuses on managing engine functions. It communicates with sensors to regulate fuel delivery, air intake, and exhaust emissions to optimize engine performance. In conclusion, understanding the functions of ECU, PCM, and ECM in a car is essential for maintaining optimal performance and addressing potential issues effectively. By following the tips outlined in this guide and seeking professional help when needed, you can keep your vehicle running smoo...