can you verify that air pressure is not entering the coolant system as well?

 

I think all you have to do is take the cap off and see if the radiator bubbles when doing the leakdown test (or boost leak)

 

Yes overlap right? I guess I mean no position that your engine would stop in, due to the valve spring pressure, would have both open at the same time. Either that or I am extremely lucky and never land in the area of overlap, because you wouldn't be able to build any pressure if you had both sets of valves open even a crack. The air would go into the combustion chamber and right out your exhaust.

I will try my leak tests again without the turbo and see if I still get the pcv leak. If not that points to the only variable, the turbo.

 

i don't understand why the issue my TB holds all the pressure i can thro at it
so my inlet doesn't get charged when doing the test
so i'd wanting to concentrate on why its passing the TB before thinking of engine probs!

 

Yes, overlap is it. Overlap generally isn't more than a handful of crank degrees, but having the crank come to rest at overlap for a cylinder can and does happen. When it does, you can clearly hear the pressure zipping past the exhaust valve. So long as your TB is shut and your ISCV not wide open, it doesn't seem to prevent one from conducting a boost leak test - if the compressor is large enough anyway.

That's because your ISCV is closed. Leave the TB closed to check the intake system. When you're satisfied there are no leaks, crack the TB open and then you can check the manifold, injectors, etc., for leaks.

 

really wanna know what solved the issue. Its been a while and I have the same problem. The car just runs pig rich.