Use a fuel injector cleaner additive in the fuel tank
Follow the product instructions for the correct dosage
Drive the vehicle normally to circulate the cleaner
Replace the fuel filter if it is dirty or clogged
Remove the fuel injectors from the engine
Inspect the injectors for visible dirt or damage
Soak the injectors in a professional injector cleaning solution
Use an ultrasonic cleaner for thorough cleaning
Backflush the injectors with a cleaning kit
Test injector spray pattern and flow rate
Replace injector O-rings and seals if needed
Reinstall the injectors and check for leaks
Clear any trouble codes and test the engine