Oil Catch Can

[matthewai]

Originally Posted by 06YarisRS

I am running a catch can on my turbo setup and have a crankcase vent. It will reduce vacuum in the crankcase when the PCV system is operating. I think you have to allow air back into the crankcase or you'll get too much vacuum in there. Post #226 in my thread here talks about this a bit.

https://www.yarisworld.com/forums/sh...her#post824972

I see I see, so I've also seen those ones that screw on in place of the oil fill cap and they have a one way check valve ball, now I was understanding that you only want the air to be able to escape the crankcase not be sucked in through the vent. and I guess my original thought was since im running the oil catch can it adds more lines, seals, and connections where gasses could potentially escape, so im just trying to figure out if I should add the crankcase vent so any vapor would exit through that instead of some other part failing. even though im confident with the install and have seen no leaks

photo is not of my engine bay