12 Jan 2025 Car Tech Truck Tech SUV Tech How Cars Work Cars Trucks Engine Tech EFI EFI Tech Electronic Fuel Injection Direct Injection Multiport Fuel Injection How Trucks Work How SUVs Work SUVs Feeding the Fire: The Parts of a Basic Electronic Fuel Injection (EFI) System The modern Internal Combustion Engine (ICE) found on nearly all cars, trucks, and SUVs today are fed by EFI. Here’s how that fuel system works.