How to Clean a Car's Fuel Injection System


Cleaning a car's fuel injection system is a daunting task, but with the help of a car engine guide, right tools and the best fuel injector cleaner, you can do it successfully. Learn how to clean a car's fuel injection system and maintain the maximum power of your vehicle.


To clean a car's fuel injection system and to do it successfully, you need to assemble the following utensils:

  • Fuel Injector Cleaning Kit
  • Detailed Guide to Car Engines
  • Protective goggles

A car's fuel injection system enables more effective control of a car's air- fuel mixture , which improves its performance on the road. To clean it properly, you must be very careful and comply with the following:

Confirm that you have the most appropriate tools
The main tool that is required to perform maintenance and overhaul of a car's fuel injection system is a specific fuel injector cleaning kit. These cleaning kits have a high cost, although they are cost effective in the long run, and can be purchased from a specialist car shop. On the other hand, it is advisable to have a detailed guide for car engines, as this tool is an extremely important tool for anyone unfamiliar with the inner workings of a car engine . Most of the time, this guide is included with the purchase of the cleaning kit.

Open the engine compartment
Before you begin the process of cleaning a car's fuel injection system, make sure your car's engine is turned off. Then open the vehicle hood and its engine compartment. Find the location of the fuel injectors: To find them, consult the vehicle's engine guide.

Prepare the fuel injection system for cleaning
After locating the fuel injectors, you should prepare to begin the cleaning process . Note that while the cleaning process is running, it is very important to make sure that the fuel is not pumped into the engine. This task can be accomplished in two different ways:

  • Use fuel inlet pipes on the engine to connect the diesel or gasoline outlet;
  • Remove fuel pump and stop engine fuel return.

Once you are sure that fuel is not being released into the car engine , you should start the cleaning process.

Begin the cleaning process


Once you have properly prepared the fuel injectors, the time has come to begin the cleaning procedure. To do this successfully, you need to follow these 5 steps:

  • Connect a pressurized solvent to the fuel injectors. Note that you should wear safety goggles to protect your eyes as well as avoid contact of the solvent with your skin.
  • Start the car engine so that the solvent flows into the fuel injectors. The time the car is to be started is specified in the respective cleaning kit.
  • Shut off engine, remove cleaning material and reconnect engine fuel line and pump.
  • Shut off engine, remove cleaning material and reconnect engine fuel line and pump.
  • Confirm that all connections are correctly connected and restart the car engine.
  • Take the vehicle to a test unit to determine cleaning effectiveness and, if necessary, repeat the process to properly clean the fuel injectors.

By performing these cleaning steps, a car's engine will greatly improve its power and performance on the road. Otherwise, it is necessary to call upon the service of a qualified mechanic and take your vehicle to a car workshop to find out where the malfunction is.