What does a multi-port fuel injection system utilize?

A multi-port fuel injection system employs separate injectors for each cylinder, allowing for optimal fuel delivery and combustion efficiency. This design enables each injector to spray fuel directly into the intake manifold or combustion chamber of its corresponding cylinder. This precise control over fuel delivery helps to enhance engine performance, reduce emissions, and improve fuel efficiency by ensuring that the correct amount of fuel is injected at the right time for each cylinder.

In contrast, using a single injector for all cylinders would not allow for individualized fuel control, potentially leading to less efficient combustion and higher emissions. Direct fuel injection alone does not define a multi-port system since it focuses on the method of injecting fuel directly into the combustion chamber rather than through individual ports for each cylinder. Furthermore, a carburetor system does not employ injectors at all; it relies on a different mechanism for mixing fuel and air, making it incompatible with the concept of a multi-port fuel injection system.