Fuel injection system – a fuel supply system installed on modern gasoline engines to replace the outdated carburetor system. Engines with this system are called injector engines.
In the injector system, fuel injection into the airflow is performed by special injectors located either in place of the carburetor (intake manifold) – “mono injection”, or near the intake valve of each cylinder (usually structurally in the intake manifold) – “distributed injection” (aka multi-point “manifold”), or in the cylinder head, and the injection occurs in the combustion chamber – “direct injection”.