We recommend cleaning fuel injectors at least every 36 months or 45,000 miles. The only do-it-yourself fuel system cleaner that works and won't damage your car is Techron from Chevron For real benefit, Techron must be used at least every 4,000 miles or so. Info from Tom Dwyer. Remember, if you want to try an injector cleaning, the best way is to do it to all injectors at once to avoid the different amounts of fuel spray after the cleaning. Some special workshops can do fuel injector cleaning for you. I recommend replacing the fuel injector instead, though, because in most cases, the problem will occur again within a Do-it-yourselfers do not have the correct equipment to test, step, validate and also clean up the within gas injectors. With the appropriate gas injector cleaning tools as well as chemicals, it will certainly take specialists approximately 45 - 60 mins of actual cleansing time to clean one or a set of fuel injectors. Part 1. Using a Fuel Injector Cleaning Kit. Download Article. 1. Purchase a fuel injector cleaner kit with a PEA cleaning fluid. Look for a cleaning kit that is suitable for your type of vehicle. Each kit should come with a canister of fuel injector cleaner and a hose that attaches to the fuel injector and fuel rail. [1] . Diesel fuel vapors can accumulate and eventually clog the diesel fuel injector. If your fuel injector needs to be cleaned, you can do the job yourself. Here's how you clean the diesel fuel injector. Step 1 - Disconnecting . The first step in cleaning a diesel fuel injector is to undo the fuel pump and place the return line for the fuel. The fuel pump is disabled. The cleaner is poured into the container and it is pressured with an air line that is regulated to the same pressure and the fuel pump spec. Then, the engine is started and the engine runs solely on the injection cleaner. 3M and BG products make these systems, among others. It's a bit expensive for the DIY'er. Ideally, you should have your vehicle's fuel injectors cleaned and inspected as part of your routine maintenance, as this can help stop problems from arising. Fuel injector cleaning should usually be done by a trained or experienced mechanic, as improper cleaning can cause more damage. If clogging is mild to moderate, your mechanic may fuel injector cleaner is a must use in any car or SUV. The difference in the so called "an increase in fuel consumption" is based on your style of driving. Like everyone else, when you feel a little more power, you tend to abuse it. When you do pure some fuel injector cleaner. Just drive the same way you've always done. Many shops offer fuel injector cleaning services that do not require the removal of the fuel injectors. This is typically sold as maintenance, but will rarely be sufficient to repair an issue with a fuel injector. If you do it yourself. Fuel injector replacement should be left to a professional in almost all cases. The risk of fire is very It's effective in port and direct-injection systems and cleans the entire fuel system in one tank. AMSOIL P.i. restores GDI fuel injectors up to a 100% flow rate ¹ and restores up to 14% horsepower. ² P.i. also fights intake valve and combustion chamber deposits to help restore power, control knock and reduce the need for higher-octane fuels. M6rk.