So i did research i tried google checked youtube asked some people around and i still am not sure on the answer. My boost guage reads -30hg. When i drive it reads 10-13 psi no tune just intake from ecs and forge dv. When idle sometimes off the gass while driving it reads -20 where it should be. When i drive it sometimes doesnt move and then it does again after i let off the gas etc. now i replaced breather valve, turbo too just for information. Has anyone had this problem or know some from experience who had this issue. Please let me know oh and car drives and runs fine sometimes tho i am not sure feels like when the needle doesnt move i cant feel boost and then sometimes i can feel it.