According to Car Blog India, a Multi-point Fuel Injection engine (MPFI) refers to an engine that uses injectors for each cylinder. Prior to the MPFI system, vehicles used carburetors with a chamber to mix the fuel and air injected into each cylinder.
The computer that controls the MPFI system is constantly monitoring sensors to calculate how much fuel is required, which allows the engine to be more efficient and use less fuel. The system's computer also remembers an operator's driving habits to ensure there is enough power when a driver usually needs it. This is usually done by sensing the amount of pressure applied to the gas pedal by the driver.