Question is. I run a AEM EMS and i am looking into blocking off the E.G.R. from the intake manifold.

So once I have it disconnected from the manifold , what should I do with the port that comes out from the backside of the valve cover ?

Should I just cap it off ? or should I put it into a catch can or what ?

sorry if this seems stupid but would like some ideas from those who have performed same action

 

Cap it off for sure.

 

Are you sure you are not thinking of the PCV valve? The PCV valve comes out of the back of the valve cover, standing in front of the car its on the backside, passenger corner of the cover. The EGR stuff all connects on the backside of the intake manifold, and the main EGR vacuum valve is just under the throttle body.

I think you might be thinking of the PCV valve. And yes, if you disconnect it, and cap it off, you will have a huge boost leak just under your fuel rail where it connects to the stock manifold if you don't cap off that fitting too. So, you will have to find a way to cap off that fitting as well, and where the PCV valve connects to the valve cover, or, as many people, just run that to a catch can along with the fitting that is on the drivers side-side of the valve cover.

 

steelcityevo8 - can you please clarify if you are talking about the PCV or the EGR

 

sorry guys , Yes the PCV valve. Actually I am looking to do both as none of those items are needed any longer with my setup and I have no need to worry about any emission related devices.

So the question still is if I can get clarification I can run the PCV off of the valve cover to a catch can correct?

And as far as E.G.R. is concerned all I have to do is disconnect all associated vac lines and make sure that all ports into the intake manifold are then capped off correct?

 

you will need an EGR block off plate, Buschur sells one.

You will also need to cap off the two nipples on the throttle body.

 

Good deal, thanks for the clarification !!

 

One last question.

If I run both of the ports off of the valvecover into a catch can that only has 2 inlets into it , wont the crankcase pressure still need a way to vent?