Fuel injection cleaning and testing - Jebs Performance Engineering

Fuel injectors are high precision electro-mechanical devices that spray fuel into your engine. While fuel injectors have been around for a very long time, they are essential for a diesel engine to work, until about thirty years ago they were fairly uncommon on gasoline engines. Years ago only the most exotic performance cars used fuel injectors on gasoline engines. Today, however, they have replaced carburetors on virtually all cars. The precise control of fuel mixtures allowed by injection systems is essential to the fuel economy and emissions control expected of today´s drivers.

There are two types of fuel injection systems.

Throttle-body systems are a direct replacement for carburetors. Sitting on top of the intake manifold a throttle-body injection system (TBI) has one or two injectors that spray a steady stream of fuel into the air flowing through the breather. As you press on the throttle pedal the throttle opens underneath the injectors and the fuel spray is increased to provide more power. When you release the pedal the throttle closes and the fuel flow is decreased for less power. This system is uncommon on newer cars.

Read the full article "How to clean a fuel injection system" by Keith Hamburger at www.helium.com

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