Valve cover breather boost leak

[iguanahotsauce]

So my talon has been down for a while becaus the computer had some major problems. I sent it into ECMTuning and it was repaired and is on it's way back. So for my problem: I did a boost leak test a while back because I am getting bad gas mileage and when I did the test all of the air would leak out of the valve cover breather. So I plugged it and then I would get air leaking out of my dipstick. So me being a newbie I didn't thnk much about it because I thought it was normal for air to leak out of the valve cover breather. But I have been reading through the forums and found out that I could possibly have a bad turbo seal? I am going to do a boost leak test again today and do it from the throttle body. My car was given to me by a family friend, he had the timing belt snap on him and so he had a bunch of engine work done and he said he had a new turbo put in so is there a reason why the seal would go bad so fast? Another problem I am having is my dipstick is blowing out under boost and spraying oil everywhere causing a far bit of smoke to come off my engine bay. I bought a new dipstick but from what I have been reading I'm guessing that the problem is not the dipstick? Any help will be greatly appreciated as I am still very new to working on cars and dont really know what I'm doing

 

[iguanahotsauce]

Alright so today I did a boost leak test today. I found a couple big leaks. One was coming from the O-ring on my ISC. I picked up a replacement O-ring and now that one is fine. Another was coming from the throttle plate O-rings. So I picked up a couple new O-rings, pulled off the throttle body and replaced those. The last one is coming from somewhere under the exhaust manifold around the right side of the turbo but I can't figure out where it's coming from.

 

[Boostin16gGSX]

i worked on a 2g gst this morning that is doing the same original problem as the begining of thread....i did a boost leak test and lots of air is coming out the valve cover and dipstick...also i can hear oil bubbling from air at the oil return line for the turbo......i was thinkin turbo seals?....but the car doesnt smoke...