Hello again, bricksters

2-part post, so bear with me, and answer what you know :)

My baby (1987 760TI+, 187K mi) failed emissions testing. The tester said that there was too much oil in the exhaust, and it was causing the CO2 levels to rise.

First things first: PCV system. I've replaced my breather box and corresponding hoses, cleaned the (seriously gunked-up) Y-connector that connects them. I also, at the behest of my mechanic/father, replaced the valve stem seals (and the silencers, since they were there too). The valves looked okay when we were in there. Took care of the valve cover gasket as well.

So, before I go and spend another 20 bones on an emissions test, what's missing? Is there anything else I can check that might help me pass (and keep the oil out of the exhaust), aside from the obvious catylitic converter?

Second part: My turbo intake hose has a giant hole in it at its elbow, where the part that goes to meet the bypass valve intersects with the main part. Looks like it's oil damage, because it looks partially melted, besides being oil-soaked. This is the second hose the car has worn a hole into. I've no idea what to do with this; the turbo spins freely and spools fine, and that's all I know to check. But that hose is extremely expensive (as are the other hoses along that line), and before I go replacing it with a new one, I want to know that another hole won't be worn into it in six months.

thanks for reading my novel, and thank you for any replies and advice :)

volfro