How a Fuel Injection System Works

A fuel injection system is used to inject fuel with an injector, under pressure into an internal combustion engine. A fuel injection system is more efficient than its predecessor the carburetor and can better operate at extreme temperatures while becoming more dependable at start up. A fuel injection system reacts better to situations such as high altitudes, extreme temperatures and variable fuel quality. The fuel injection system is an integral part of a modern vehicle's engine management system. A fuel pump, usually located inside of the fuel tank, supplies pressurized fuel for the system. The fuel pressure is controlled by a pressure regulator according to demand on the vehicle. Ultimately the amount of fuel that goes into the engine is determined by the engine management system according to information (feedback data) gathered by the sensors.

Typical Fuel Injection System
A fuel injection system is more efficient than its predecessor the carburetor and can better operate at extreme temperatures while becoming more dependable at start up. A fuel injection system reacts better to situations such as high altitudes, extreme temperatures

and variable fuel quality.

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