Describe the purpose of a fuel injection system.

The purpose of a fuel injection system is to accurately meter fuel for combustion. This system is critical for optimizing engine performance, efficiency, and emissions. By precisely controlling the amount of fuel injected into the combustion chamber, the fuel injection system ensures that the fuel-air mixture is ideal for combustion, which leads to more effective engine operation.

Proper metering of fuel contributes not only to increased power output but also to reduced fuel consumption and minimized emissions. This accuracy in delivering the right amount of fuel at the right time is essential for modern engines, especially those equipped with advanced technology like electronic fuel injection.

While cooling fuel, increasing fuel pressure, and filtering impurities can be important components in the overall fuel system, they do not capture the central function of the fuel injection system, which is focused on delivering fuel in a controlled and precise manner to support efficient combustion.