So i recently installed vtuner stage 2 package on my 06 saab 93 aero. When first installed the thing ripped it was amazing. After a week it started misfiring, upon logs i was told it was the fuel pump. Replaced it and yea the car stopped misfiring but now anytime i try to open her up. My boost gauge will go to 16psi, which is already less boost than stage 2 should be and then on top of that it only PEAKS 16 once that number is shown on my digital gauge it falls QUICK. And you feel it. Complete loss of power i figured maybe it was the boost control sensor so i changed it and that didn't even help. Im stuck and i honestly just want to enjoy my car at its full potential. Someone chime in who has had boost issues. Ive checked the hoses no leaks. Is this a wastegate issue or something im missing?