What is the difference between direct injection and multi-point fuel injection?

[SanAlexa]

Direct injection and multi-point fuel injection differ in the way fuel is injected: direct injection sprays fuel directly into the cylinder; multi-point fuel injection has injectors mounted on the intake manifold, where fuel and air begin to mix before entering the cylinder. Direct injection involves installing the fuel injector inside the combustion chamber, directly spraying gasoline into the cylinder's combustion chamber, where air enters through the intake valve and mixes with the gasoline before ignition. Multi-point fuel injection, on the other hand, involves the fuel injection process taking place in the intake manifold during the operation of a gasoline engine, with the control program issuing specific timing commands to the electronic fuel injectors.