Actually that won't tell you if it is stuck open. You can pull any line in the intake track and find vacuum at idle. Just check it like I said earlier and deal with it from there. Should be pretty easy. Personally, I don't run a PCV ever just because I don't like the idea of it potentially boosting the crankcase even once. I used to have an electric vacuum pump hooked up instead, that worked very well, but now plans have changed a bit. I will always have some form of vacuum to evacuate crankcase pressure and it will never be a PCV relying on engine vacuum. That system is stupid in a boosted vehicle anyway, as soon as you are building any boost, that system is closed and that is when the pressure needs to be evacuated. Not a very effective method IMO.
So, you can decide if you want to keep it now after all my rambling
