MAF/T users... what did you do with the PCV?

[fostytou]

Just wondering what everybody did with their PCV.... I just got my car back after the MAF/T install and without the breather not only am I spraying oil everywhere but the car has SUPER positive fuel trims at idle. Where did you move the line to or what did you do with it?

 

[dave99gst]

maft shouldnt effect PCV ? unless you got it comming out of the pass side of the valve
cover for some reason. ( i think i have seen that b4,just not to often ) they norm come out of the back by the intake mani

 

[99gst_racer]

I am running a MAFT blow-threw. I just replaced my PCV w/ a brand new one and I did not route it back into the intake manifold. I caped off the nipple on the manifold and I ran the PCV hose and the valve cover breather hose into a catch can with a breather on top. My MAFT did not and was not affected by this.

 

[MattnGsx]

I am running a MAFT blow-threw. I just replaced my PCV w/ a brand new one and I did not route it back into the intake manifold. I caped off the nipple on the manifold and I ran the PCV hose and the valve cover breather hose into a catch can with a breather on top. My MAFT did not and was not affected by this.

Ditto, I made one for 7 bucks (catch can) from home depot.

 

[oldman]

I just replaced my PCV w/ a brand new one and I did not route it back into the intake manifold. I caped off the nipple on the manifold and I ran the PCV hose and the valve cover breather hose into a catch can with a breather on top.

Paul, You need to either hollow out the pcv or replace it with a 1/8 npt straight fitting. The pcv will only open and vent the crank case when there is vacuum on the other side, especially a brand new one.

 

[fostytou]

I apologize. It was a bit late when I got to that and I meant to say valve cover breather. I was reading that this can allow unmetered air into the engine since i have blowthrough now. If I stick my finger over it my idle fuel trims are still very positive (because it takes a bit for trims to change... and the trims zero when I hit the gas at all)... but when you take it off you can hear air move over it.