Ok, for you guys that ahve deleted your PCV did you also remove the fresh air tube? Ive got a small breather on the drivers side and a small breather on the pass side. The port it connnects to the intake is blocked off with a rubber vacuum cap. Ive been doing some tuning and I noticed under accleration, the MAP sensor pressure would start dropping. So Im getting vacuum from somewhere. Im thinking that its comming from the fresh air tube. Beings Ive doubled checked everywhere for any leaks. Is there any drawbacks from removing it? Any advantages for leaving it?

Thanks!

 

I left mine on when i was running breathers. But I assume you could remove it.

 

Ok, thats one for leave it.

 

If you're running breathers on both sides, there is no need for the fresh air tube. I'm running Metco breathers on both sides, and my fresh air tube is in a melted plastic pile in my neighbor's backyard - along with the rest of that PCV garbage.

 

Remove it. I doubt the fresh air tube has anything to do with your manifold pressure conisdering it's in front of the TB.

I plugged mine, along with the rest of the PCV ports.

 

Thanks guys! Ill pull if off this afternoon.

 

Why would people remove the pcv system? kinda confused maybe I am missing something... what is there to gain?

 

Eliminates oil consumption, relieves extreme crankcase pressure, unclutters the engine bay. But oil life will suffer.