Originally Posted by Sundowner

Warning: This post contains some awesomely Fallout-esque parts-scrounging.

Pop Quiz: What do you do with the following items: an old cell phone charger, some Chap Stick, two butt-splices, a piece of red tubing that fell off of an aerosol can, some superglue and a random momentary contact switch?




Answer: Add one can of Throttle Body cleaner and build an injector cleaner.




Valuable Information: This thing worked ridiculously well. I learned that it's really not a matter of pressurizing the injector as much as it is just holding the solenoid open while shooting cleaner through it. If I had to buy the parts to build one, I'd just get an on/off contact switch, and make life easier. To operate it, you first backflush the injector by holding the injector solenoid open with the switch and then spraying cleaner through the injector itself in short bursts. Then you reverse it and spray through it in the normal way. This won't do the job of an ultrasonic cleaner and total rebuild, but it will get nasty varnish deposits off of your injectors and help them spray a bit better.