EFI supplies an accurate air/fuel ratio to the engine no matter what operating conditions are encountered.
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The combination of better fuel atomization and injection directly at the intake valve improves ability to start and run a cold engine.
The fuel system has the job of supplying a combustible mixture of air and fuel to the engine.
The purpose of the air induction system is to filter, meter, and measure intake air flow into engine.
Each cylinder has its own injector that delivers fuel directly to the intake valve.