Did a search, most results were for RB26 and none seemed really relevant enough to bump with my question.
Recently I began to hear a hissing type of sound from my engine bay, and upon inspection of the PCV hose I've noticed there was a small split where it went onto the rocker cover. At the time I just too it off, cleaned the end of the hose, and stuck it back on - hissing sound appeared to vanish even though I didn't fix anything (just didn't have time then). However recently my car has begun idling at around 1200rpm even when warm, it's starting to drive me insane. I'm guessing that it's likely an air leak post-throttle body and I'm gonna point my finger at the PCV first anyway. Worst case is it's something else.
I'm currently running a catch can setup where hose connects the two rocker cover outlets, and then the catch can is plumed into the exhaust side. Catch can is also plumbed into intake piping before the turbo. If I'm correct, I should be able to block the PCV and not worry at all about pressure buildup since the catch can will take care of that, yes?
If so, what do I need to get to block it off??