| By :
Terry S Vostor
Before the days of modern electronic fuel injection systems being employed on vehicles automobile engines used to employ manual choke mechanisms.These were controlled manually by the driver or operator themselves of the vehicle. Today most cars, trucks and Sports Utility SUV vehicles utilize an automatic choke that works by means of a spring that coils or uncoils in response to the amount of heat present. It is this spring sets all in stage. Some lament that automatic chokes give less overall control such as the preference for stick shifts in manual transmissions. Still most drivers and even photographers with automatic cameras prefer the convenience of automatics. Its all about convenience spouts well known know it all Kirk Stephens. What are the advantages of fuel injection and fuel injector systems over older style carburetion? First of all how did the earlier gas carburetor fuel line systems work? No doubt even though low tech they worked and for the most part were reliable and could be counted on. A carburetor mixes volatile gasoline fuel and air from the atmosphere in proportions somewhere near what is required and needed for automobile engine function and firing. The main job and function of the carburetor and carburetion system is to mix the proper proportions of gazoline and air together and to pass them along in the proper quantity and quantities to your engine. Along its path and roadway a carburetor performs any of a number of important engine and automotive functions and roles. In a gasoline engine , fuel injection eliminates the need for a carburetor by bringing the fuel and air together right in the intake manifold itself, which is just outside the combustion chambers of the engine. A constant supply of air is drawn through the air cleaner and past the throttle arrangement into the intake manifold itself. Here tubes of equal length deliver an equal amount of air into each cylinder. This air is mixed with varying amounts of fuel from fuel injector valves located close to the combustion chambers themselves. Some systems work mechanically by using a meter and pump to regulate the action and actions of the valves. In other systems the valves respond to commands from electronic sensing devices and modules which receive a constant stream of inbound data on intake manifold pressure and changing pressures, intake. True while the fuel / air mixture delivered to your vehicle's power plant is not always ideal nor 100 % it is closer and more closely approximates the ideal required for your driving and motoring conditions and situations. In recent years fuel injection systems with advanced computerized electronic sensing devices have shown overall greater sensitivity and accuracy to repay their initial investment providing greater fuel economies ,cleaner exhaust emissions and more controllable power.Furthermore innovations in designs and manufacturing processes are producing cheaper and more durable systems. Throttle body fuel injection is another type of carburetor-less system that mixes the fuel and air together right in the throttle of the car instead of using individual injectors to pump the fuel into each cylinder. These systems are overall less complex and complicated than individual fuel injection systems and are generally cheaper. Some of these systems use solenoids to spay the fuel into the airstream of the throttle through a fuel injector nozzle.
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