ok, so out of the blue this exhaust noise is coming from what seems like the UIM, or just under it. doesn't seem like the Dp.... because it's coming from past that.... I'm assuming the ERG or connection close to that.... though I don't see any exhaust fumes..


any ideas?

 

Use a stethascope or put a hose to your ear a fish it arround where the noise might be. Also, try too feel with your hand for any leaks.

If the car is running the same it is likely not a vacuum leak.

I would guess, DP or EGR but look arount the turbo's completely.

Good luck.