I was told that 12v is rather risky to use to energize the injector... 4-5v ought to do it.

Otherwise I like both ideas.

I have access to an ultrasonic cleaner at work. I fill the bath with alcohol, fill a clear tube with alcohol and connect it to the injector tip, hook up a power supply to open the injector, and blow to reverse flush the injector.

I just rejuvenated 8 injectors that were gummed up from 10 years of sitting on a junk car. I think reverse flushing and ultrasonic cleaning is a superior way to clean the injectors before testing the flow pattern.

__________________
95 E320 Cabriolet, 159K