Volkswagen and Audi Direct Injection Head Port Cleaning Tool
Amazon.com: X AUTOHAUX Fuel Injection Systems Cleaning Tools Car Fuel System Cleaner Kit for Petrol EFI Throttle Car Engine Non-Dismantle Cleaner Machine Fuel Injector Cleaner 600ML 140PSI C80 : Automotive
The Simple Guide to Fuel Injector Cleaning -
Fuel Injection cleaning in less than 5 Minutes/HOW TO clean injection Directly without disassembling - YouTube