Section 03-04C: Fuel Charging and Controls, 7.5L Engine | 1996 F-250, F-350 and F-Super Duty Vehicles Equipped with 7.5L MFI V-8 Engines Workshop Manual |
The multiport fuel injection system (MFI) is classified as a multi-point, pulse time, speed density control fuel injection system. Fuel is metered into each intake port in a sequential firing order. Fuel injectors (9F593) pulse to follow engine firing order in accordance with engine demand through injectors mounted on a tuned intake manifold (9424).