2011 VW Passat CC 2.0T TSI PCV / BOOST LOSS ISSUE

I have been having a boost loss issue on my 2011 vw cc 2.0t. The problem is intermittent some days it's fine others it's not. I have changed the diverter valve and pcv diaphragm same problem.

[brogarybutler]

It’s going to be the rear crank seal that needs to be replaced. It sucks in once the pcv valve goes and it’s almost paper thin

[Mr.BaconMuffin]

isnt this normal ? i mean if the engine dies when u remove the oil cap thats a big problem

[flexlove]

That's normal if you take out the oil cap you lose pressure that's normal

[LiVinDaRavE]

What code was your car giving you? mine is running too lean and I don't want to replace the pcv unless I know it's it.

[fhhddvhhddyh]

On this cars by experience the manifold itself is most of the time wit the pcv

[Geek.o.nocito]

You cant take it off it makes them run like crap