Who invented the MPFI engine?
Frederick William lanchester invented the earliest MPFI engine
EFI is electronic fuel injection MPFI is multi port fuel injection. MPFI is a form of EFI so there is no real answer. There is also TBI, throttle body injection. EFI is electronic fuel injection MPFI is multi port fuel injection. MPFI is a form of EFI so there is no real answer. There is also TBI, throttle body injection.
Asnwer: MPFI stands for Multi Port Fuel Injection. As opposed to TBI, Throttle Body Injection. A cam and crank sensor tell the engine controller which cylinder's injector to fire and for how long. They fire with the same time as the spark plugs do. This is a more fuel efficient way to gain power. The TBI system has one or more injectors that spray fuel into the throttle body and the mixture is drawn into…
'Mpfi' stands for 'multi point (electronic) fuel injection'. This system injects fuel into individual cylinders, based on commands from the 'on board engine management system computer' - popularly known as the Engine Control Unit/ECU. Mpfi Systems can either be : a) 'Sequential' i.e direct injection into individual cylinders against their suction strokes, or b) 'Simultaneous' i.e together for all the four or whatever the number of cylinders, or c) 'Group' i.e into Cylinder-Pairs.