An Electronic Control Unit (ECU) model is a crucial component in modern vehicles, responsible for managing and controlling various electronic systems within the vehicle. It acts as the brain of the vehicle, processing inputs from sensors and making real-time adjustments to ensure optimal performance. In CNG vehicles, the ECU model specifically manages the fuel injection system, ensuring the correct amount of natural gas is delivered to the engine. It controls the sequential injection process, adjusts fuel pressure, monitors engine performance, and ensures smooth transitions between CNG and gasoline operation. The ECU model enhances efficiency, reduces emissions, and improves overall vehicle performance.