What role does the engine control unit (ECU) serve in an electronic fuel injection system?

The engine control unit (ECU) plays a critical role in an electronic fuel injection system by receiving input from various sensors and using that data to adjust fuel delivery to the engine. The ECU processes information from sensors that monitor factors such as air flow, engine temperature, and throttle position. Based on this input, it calculates the precise amount of fuel needed for optimal combustion, ensuring efficient engine performance while also minimizing emissions.

This real-time adjustment capability allows the ECU to respond dynamically to changing conditions, improving fuel efficiency and the overall operation of the engine. The ECU's ability to manage fuel delivery is essential for maintaining the right air-fuel ratio, which is crucial for achieving the best possible power output and emissions control.