Doing an egine swap, ej2o to ej22t and am trying to identify this piece. It appears to be possibly a crank case vent. I looked in the repair manual for this engine and it only shows a bolt at this location. I cannot put the coolant passage back because this item is in the way. Can any confirm or deny this piece? http://img.villagephotos.com/p/2004-6/741523/ej22t.jpg

crank case vent. guys have reported on being able to plug it and had not adverse side effects. It should get routed in the pcv system tho, wedge i believe had a nice diagram of it.

mine is capped off, with no problems, that I know of, been that way for 36k miles of turbo fun.

Jay

That fitting goes into a T which is connected to the two heads.

http://subiekid.com/pvcblock.jpg

Thanks for all the input. My diagram wasn't so accurate. I did end up capping that off. The wrx coolant passage wont fit without removing it.