I recently installed a cold air and I went to change one of the seals on the throttle body( I just didnt trust it). When I got the throttle body unbolted and pulled off again I noticed fair amount of oil on the intake manifold near the top and upon further inspection also found oil in the spacer and the manifold side of the throttle body itself. The back side of the butterfly also has oil baked on. The only cause I thought about was that the new intake has caused a vaccuum on the oil breather tube and has been pulling oil into the intake. I need any other diagnosis or solutions if you brainyacks out there got any ideas for me..,
thanks for the help

 

Yeah, my mustang did that to me because of the crap PCV set-up. More so common with superchagers than N/A vehicles. It could mean your valve seals are leaking besides the CAI causing that.
Any idle issue's that would signal any vacuum leaks?

 

Not that I can find my exhaust doesnt blow blue at all that i have noticed, i thought that would be a decent indicator any other ideas or signs to look for?