[Custom/Ten]

Pcv can't work without the breather, they are part of the same system. If you plugged your breather then you do not have a functional pcv. This is prolly you problem. If you lucky you just blew your oil out your valve covers and need to replace your valve cover gaskets which could have dumped onto your intake. Don't drive without some kind of breather. Your gonna have to find the sorce of the leak to know where it blew.