Maybe you don't need the link. I've cleaned injectors myself. What you DON'T want to do is apply direct 12v to the injector! That may fry it. It takes 1 to 3 volts to energize the injector. I typically increase the voltage until the injector opens. Besides a power generator I have access to an ultrasonic cleaner and a wide variety of solvents. A search of injector cleaning fluid has led me to believe they are mostly xylene based. I think the combination of ultrasonics and reverse flushing is what properly cleans an injector.

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95 E320 Cabriolet, 169K