How to Clean a Fuel-Injection System
The fuel injector is a small engine part that injects fuel where it needs to go at the perfect rate for your particular car. If you keep it in great condition, the injector will filter out bad debris and then allow the good fuel to be used correctly. Cars run better and get better gas mileage when this system is clean, but you need to find the best fuel injector cleaner for your particular car.

Plenty of products claim to be great fuel injection cleaners, but the nasty truth is that fuel injection systems need to be serviced and cleaned on a regular basis and these products don't always do the job. If you can't afford to have the system professionally serviced, then you can clean it yourself in a few simple steps.

After you buy the appropriate cleaning kit, start by locating the injector. Make sure the fuel will not go through the injector while the car is started, using tubing to bypass the fuel injector or removing the fuel pump.

Now you can hook up the fuel injector cleaners to the fuel injectors you wish to clean. Start the engine and wait for the solvent to go completely through the injectors. Then unhook the cleaners and see if the car runs better. If the car is still idling or running improperly, you will have to venture to a professional to get the fuel injector system removed and serviced.

It is actually really important to get the system serviced annually. When you do the above in-tank cleaning method, you are not able to see the condition of the filters and O-rings. These will wear down over time, causing low gas mileage and lots of other mechanical problems. It is a good idea to get the injectors replaced once a year to ensure a healthy engine and the best fuel economy.

If you choose to serve your own system, don't do it too frequently. The in-tank process can actually damage parts of the injectors, such as the filters, seals, and oxygen sensor over time. After a thorough injection service, you can rest assured that your engine will operate at peak performance. You will notice a difference in the way your car runs and that pesky "check engine" light should finally disappear.