Practice question

What is the primary function of a fuel injector in an Electronic Fuel Injection (EFI) system?

To filter impurities out of the petrol before it enters the cylinder
To spray a precisely metered amount of pressurized fuel into the intake manifold or directly into the cylinder
To ignite the air-fuel mixture with an electric spark
To store reserve fuel for the engine

Answer: B — To spray a precisely metered amount of pressurized fuel into the intake manifold or directly into the cylinder

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