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

[ColeLynn]

The differences between direct injection and multi-point fuel injection are: 1. Different advantages: Direct injection gasoline engines have lower fuel consumption and higher power; multi-point fuel injection replaces the design of multiple cylinders sharing a single injector. 2. Different disadvantages: Direct injection requires frequent replacement of components such as spark plugs; multi-point fuel injection engines have lower injection pressure. 3. Different principles: Direct injection is a technology that directly injects fuel into the cylinder to mix with the intake air; multi-point fuel injection is completed through electronic injectors. The fuel injection system consists of three major parts: the fuel injection circuit, sensor group, and electronic control unit. If the injector is installed in the original carburetor position, meaning the entire engine has only one fuel injection point, this is single-point fuel injection.