today when i was going to work i noticed that my boost pressure was only at 7 or 8 psi..(with the giac chip it was at around 15). so i left work and stepped on the gas and saw it go to 11 or 12...i got home and installed my 710n thinking that the factory one was done..i just tried a pull with it and only got to 10psi maybe..could there be a vacuum leak that formed overnight, or is it something else..when im in park idling my boost gauge reads a vacuum of 20 which it always has so im lost along with my boost..

 

Id check your lines, maybe a stuck wastegate that would suck cuz those can be spendy i think you have to replace the turbo if thats so