How Often Should You Clean Your Car's Fuel Injectors?

[Felix]

Car fuel injectors should be cleaned approximately every two years or every 50,000 to 80,000 kilometers. A fuel injector is a normally closed valve controlled by the up-and-down movement of a needle valve. When the ECU sends a fuel injection command, the voltage signal generates current through the coil inside the injector, creating a magnetic field that lifts the needle valve, opening the valve to allow fuel to spray out through the injection nozzle. The cleaning method for car fuel injectors is as follows: 1. Open the engine hood and hang the cleaning device on the front hood of the car; 2. Remove the return pipe from the engine connection point and block it; 3. Remove the fuel inlet pipe from the engine connection point and connect it to the cleaning device's outlet pipe; 4. Open the fuel tank cap and remove the fuel pump fuse; 5. Add cleaning agent to the storage bottle and adjust the pressure regulator knob to a lower position; 6. Connect compressed air to the cleaning device's air inlet and increase the pressure regulator's pressure; 7. Open the cleaning device's fuel inlet valve and start the engine.