think its okay to just cap off the vaccum line that goes from the valve cover to the intake? reason i ask is new intake doesn't have the nipple for the vaccum line. by the by car is an 03 eco
for like $15-20 you can get a fitting set to add fittings to intakes. ive seen them at local performance stores.
1997 RedR - ZedR
cap it off no... you need pressure to be able to escape out.
you can get a little breather to put on though and that will be just fine.
you can drill a hole in the intake and put a gromet with a plastic pcv valve nipple.
~1996 Cavalier LS 2.4L (auto)
^^^ that is true but Ecos don't have a PCV valve. The PCV system consists of a single rubber hose from the valve cover the intake (pre manifold, no engine vacum) and thats it. No valves but yes your point is the same and correct