Use a fuel injector cleaner additive in the fuel tank
Follow the cleaner’s label instructions for dosage
Fill the tank with the recommended amount of fuel
Drive normally to let the cleaner circulate through the system
Replace the fuel filter if needed
Remove the fuel injectors for manual cleaning if buildup is severe
Clean the injectors with a professional injector cleaning kit
Use an ultrasonic cleaner for removed injectors
Inspect injector seals and O-rings before reinstalling
Reinstall the injectors securely
Test the engine for smooth idle and proper performance
Have a mechanic perform a professional fuel system cleaning if problems continue