Which component is responsible for controlling the fuel delivery to the engine?

The component responsible for controlling the fuel delivery to the engine is the Engine Control Module (ECM). The ECM is an electronic control unit that manages various aspects of the engine's performance, including fuel injection, ignition timing, and engine temperature. It continuously monitors inputs from various sensors and adjusts the fuel delivery accordingly to ensure optimal performance, efficiency, and emissions control.

For example, the ECM assesses factors such as engine load, speed, and temperature to determine the appropriate amount of fuel to inject into the combustion chamber. This dynamic control helps in adapting to various operating conditions, ensuring that the engine runs smoothly under different loads and environmental conditions.

While the carburetor also plays a role in fuel delivery in older engines by mixing air and fuel in the correct ratio, modern engines predominantly rely on the ECM to regulate fuel injection electronically for enhanced accuracy and efficiency. The fuel line transports the fuel from the tank to the engine but does not control or regulate the fuel delivery itself. The fuel gauge simply indicates the fuel level in the tank, providing no function in the control of fuel delivery.