To be honest, I don't have any idea about the atmospheric pressure issue. Maybe it can be a cause, but to be honest I don't know.
Talking about the lines connection, right know I'm not sure cause the lab guys took everything off some weeks ago, and I don't remember exactly how they had them connected. I remembered that there's a line that goes to the air box and this line was unplugged cause it was not doing any difference. But the rear I can't remember where it was plugged.
And yes having the TB doesn't make a important difference and it worked bad.
I been driven my car and it goes just as normal as always it has before. I'm not sure about the torn diaphragm, if is turn will it be notice as n/a?
Which one is exactly the vent hose is the one use like a breather? "See pic below that's the one" ? If this is the one, I think that it was plugged into the air box.
I'm sorry some times I have to connect things in my brain cause I have to translate them or guide my self through pictures cause I'm not sure which part is the correct one, in other words, I'm learning a lot from you guys, so please be patient with me !!!
I wish you guys could guide me with pics in order for me to be able to create the correct path in my head and then try to get a turbo and do it again if it's worth.