i have a 1990 nissan 300zx and it studders alot i took out the injectors and there pretty dirty, i neeed some suggestion on how to clean them up so i can reuse them..

 

send them to a professional...

i had mine done by witch hunter. They were reasonable on price, had VERY VERY VERY VERY FAST turn around... and they also flow test them all, and ohm check, and send back what they were before and after the cleaning..

I had mine cleaned and they looked like new.. The price also includes replacement of all the O rings.

Also, if an injector is bad, they don't charge you for it. I didn't notice but the pintle had broken on one of mine, they sent it back letting me know it was bad (i actually think they called me).

http://witchhunter.com/