What does MPI mean?

[IsabelAnn]

MPI stands for Multi-Point Injection. Here are the relevant introductions: 1. Multi-Point Injection: Multi-point injection means each cylinder is equipped with a fuel injector, enabling independent fuel supply to each cylinder. This avoids the drawbacks of single-point injection's one-size-fits-all approach. The fuel injection quantity for each cylinder is controlled and adjusted by the computer, making the fuel injection amount and timing for each cylinder more precise, thereby improving the engine's combustion efficiency. 2. Single-Point Injection: Single-point injection refers to having only one fuel injector responsible for supplying fuel to all cylinders. The injector is located on the intake pipe before it branches into the intake manifold. The fuel injection quantity is determined by the throttle position. Due to the varying lengths and positions of the intake manifold runners, the amount and timing of the mixed fuel-air entering each cylinder are inconsistent, leading to differences in the working conditions of each cylinder.