What does fuel injection do?

Fuel injection is a system that meters and delivers fuel into an internal combustion engine. Instead of using a carburetor, which uses air pressure to mix fuel and air, fuel injection uses a precise system to spray fuel directly into the intake manifold (port fuel injection) or directly into the combustion chamber (direct fuel injection).

This offers several advantages over carburetors:

* Improved Fuel Efficiency: Fuel injection delivers a more precise fuel-air mixture, leading to better combustion and less wasted fuel.

* Increased Power: A more precise mixture means more complete combustion, resulting in more power output.

* Cleaner Emissions: Precise fuel delivery reduces incomplete combustion, leading to lower emissions of pollutants like hydrocarbons and carbon monoxide.

* Better Cold Starting: Fuel injection systems can more easily start the engine in cold weather.

* Improved Throttle Response: The engine responds more quickly to changes in throttle position.

In short, fuel injection provides a more efficient, powerful, and cleaner way to deliver fuel to an engine compared to older carburetor systems.