Fuel injectors do exactly what their name suggests, as they deliver fuel into an engine's combustion chambers to be burned. Fuel injectors can cause a whole host of problems that can lead to major engine damage if not diagnosed and replaced or repaired as soon as possible.
A dirty fuel injector can cause fuel line problems such as misfiring, hard starting, stalling and hesitation. If you are hearing other noises, such as clanging or high idling, you might want to check other areas of your fuel system.
ECS Tuning has a wide variety of products for your system, so be sure to look it over for the parts that you need.
