cleaning injectors. Reply #15 – November 26, 2005, 01:32:00 AM to be honest, i wouldn't think that it takes a voltage to run an injector, or if it did, it wouldn't be a full 12 volts,while your car is running, back probe the injector, and find out how much voltage is running through it, i think injectors are like a 90% duty cycle, there for, you can run them for a second or two,why wouldn't you dissasemble the injector, like in the link, and use your wifes (or your own) ultrasonic cleaner, found on http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=3305muahhaha...i'd never do such a thing...or send them to your local carb shop, and have them do it..so you can blame them for screwing up, not only that most of the shops will balance them too, and a flow test, making sure they are all flowing the same amount, Quote Selected