Homebuilt Experimental Aircraft Engine Management
A computer controlled fuel system that distributes fuel through an injector located in each intake port of the engine.
A fuel delivery system in which nozzles (injectors) spray fuel into the intake manifold or cylinders. This allows for precise fuel control and better fuel efficiency than a carburetor system.
See fuel injection/electronic fuel injection (EFI).
A computer controlled system that injects fuel into engine cylinders to be mixed with air rather than having fuel and air flow through a carburetor as in older cars.
There are different types of fuel injection systems, but all have replaced the carburetor for introducing fuel into the engine with much more precise control and timing. This has many advantages in fuel economy terms, as well as providing better engine performance and reliability, with lower exhaust emissions.
(EFI or EFi) A system that injects fuel into the engine and includes an electronic control unit to time and meter the flow. Fuel is delivered in intermittent pulses by the opening and closing of solenoid-controlled injectors. Also called pulsed injection
Abbreviation for Electronic Fuel Injection. This type of system uses computer-controlled fuel injectors to spray fuel into the engine rather than mechanically controlled injectors or a carburetor. EFI comes in several varieties: "throttle body injection"
Just about all new cars, trucks and SUVs use EFI. It is an electronically controlled fuel delivery system that delivers gasoline or diesel fuel into an engine.