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yeah, but thats how any turbo kit is. You cant just throw the parts on and have it run right. There is a lot of trial and error if you dont bring it to get tuned instantly. Everything should work just fine, the install can suck, but I did it in a weekend, so thats not nearly as bad as everybody else had to deal with. It did take a good month or so to get it running nicely. But thats cuz my tune was canceled on me a couple times, so I just found a new shop. They get me in the day I call, and do a much better job.

Hopefully those check valves work, if you are going to try those out. Sounds like the MAP is what the problem is. Everything else should idle normal, cuz you didnt do anything to your stock injectors. They stay the same with the same fuel as stock going to them. Thats one thing I like about extra injectors.