The ECU is responsible for managing the engine's functions, such as fuel injection, emissions, and ignition timing. It collects data from sensors throughout the vehicle and adjusts settings to optimize performance and efficiency. In conclusion, understanding the functions of ECU, PCM, and Fiat Freemont ECM is essential for maintaining your car's performance. By recognizing common issues and seeking reliable solutions at Flagship One, Inc, you can keep your vehicle running smoothly for years t...