Need help AEB 1.8T not holding Boost
Hello everyone I need some help figuring out what might be causing this problem. Currently I am running stage 1+ kompressed tune. I usually would be around -11 -12 vacuum pressure, I noticed a couple days ago i am down to -8 at idle, and I no longer will hold as much boost. Usually it will spike to 17-18 and hold at 16-15. Now it only holds at 13 and wont go any higher. The car runs fine at idle and drives normal. I have heard it could be an n75 valve or DV valve but I went ahead and changed both of them before I even got the ecu. If anyone can give me some more information that would be great thank you
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