Hey i had somewhat of the same issue. I had bought some injectors from the dreaded craigslist and wasn't sure if they were what he said they were so I went to Boost Lab and got them checked out and cleaned. Luckily they were legit. If you need info on Boost Lab here is the web address-
www.the boostlab.com- Kirk is a great guy and I will definately do business with him again. It is better to be safer than sorry, so I spent a little money for reassurence.