Which system adjusts fuel delivery according to engine performance demands?

The engine fuel control unit is responsible for adjusting fuel delivery based on engine performance demands. It interprets various inputs, such as engine speed, manifold pressure, and temperature, to optimize fuel flow for efficient combustion. This ensures that the engine receives the appropriate amount of fuel at various operating conditions, enhancing performance and efficiency.

In contrast, the ignition control unit is primarily focused on the timing and delivery of the spark necessary for ignition, rather than fuel management. The throttle control assembly regulates airflow into the engine, influencing power output, but does not directly control fuel delivery. Meanwhile, the fuel filtration system ensures the cleanliness of the fuel being delivered, preventing contaminants from entering the engine, but does not play a role in adjusting the amount of fuel based on performance demands. Thus, the engine fuel control unit is the key component for dynamic fuel adjustment in response to real-time engine requirements.