Mikey L

So J31 software pushes like 27 psi or whatever. I was getting an overboost code and I feel like I've tried everything. I was planning on getting Mobile Tuner to dial down the boost but I figured why not try putting in some old software, so I put in K31... Still get overboost, which makes no sense. I'm able to get one good run in WOT and then the car is in limp mode.

Also a month or so ago tried dialing down my N75 valve, which was probably a mistake, because it may be shot now.. But if it were shot, wouldn't I just not be able to get even the one good run at full boost?

Could this be an issue to do with the pressure drop from the extra piping for the FMIC? But then I don't see how I'm getting overboost..

By overboost I mean 17965 or whatever the code is, positive deviation.

Thanks for any help.

-mikey