Someone was saying that their hose was getting pinched when they closed the hood.
Not sure if that would cause this issue or not.
So my question to that someone would be how would they know it's getting pinched when the hood is closed????? and if it did get pinched then you would get a coughing sound as soon as the throttle is released while in Hg.
I have stock BPV on FMIC + full bolt otherwise. I had Forge but, it started leaking so, I put the stocker back on and picked up 2-3 mph 1/4. So, I'm not too motivated to re-grease the Forge. Stocker seems to be holding the up to 21 psi on my tune just fine.
Going back for my re-tune soon however to get the most power out of my setup, should be interesting.
Don't know about holding 27 psi, but it will hold steady and true with as much or more boost than is safe with the K04 turbo. With my mods below my target boost is 19-20 psi tapering to 16 at 6,000 and I absolutely cannot make the stock BPV leak. Stock BPV for me. If it ain't broke don't fix it.