I noticed that my car didn't seem to be pulling quite as hard. I checked by boost controller (Profec-B Spec II) and it showed a max of 12.3 psi. Usually at 40% I get at least 13 psi in 2nd gear and up. When it's cold, I may get as high as 14 psi. Anyways, why would my boost be lower all of a sudden? Wastegate issues? Turbo taking a ****?

 

check for an intake leak, cracked hose, loose fitting, etc.

 

pressurize the system. if theres a leak youll find it within seconds.