Fuel Injection
What is fuel injection?
A fuel induction system in which fuel and air are metered separately at the fuel control unit but not mixed together; instead, the fuel is injected directly into each cylinder's intake port (just ahead of the intake valve) where it mixes with air just before entering the cylinder. Unlike a carburetor, it is less prone to icing, but it uses an alternate air source inside the cowling in case the normal intake becomes blocked. Think of it as delivering fuel right to each cylinder's doorstep rather than mixing it all upstream like a carburetor.
Also known as: fuel injection system, fuel-injected engine
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