I'm thinking PCV but I'm not a 2.0 expert. There's a few guys on here that should know.

I would agree on the comp. test but......... all 4 holes all at once?

smoke is gray/black. and, I have oily tail pipe now.

will certainly test the pcv.


 keep the ideas comin'

went out yesterday to check pcv. found a cheap plastic 1.
it was broken and, wide open. fished the pieces out with a magnet.

 Question...... .... I could see if it were clogged shut causing a vacum problem but, being wide open,how could this cause oil to get into the combustion chambers?

 bought a new metal one. I am hoping this will help.

 Still fishin' for ideas!!!!

 thx

I wish I had a good answer for you but I have seen screwed up PCV systems do some wacky things over the years.
 
On a side note I'm chuckling at the editing software on this site that put the word "ZOOP" in place ofSUCK..... Are you freakin' kidding me???!!

zoop has been going in place of s-u-c-k for years. Nobody has been able to fix it for one reason or another.

Back on track... If the valve is damaged who knows what it will do. Now you said the smoke is grayish/black that would indicate running rich. Oil gives a bluish color but it could be mistaken for gray.

Next question. Is there any oil in the air cleaner? If there is you have serious blowby issue. Also remove the oil cap with the engine running &  either with your hand or a piece of paper put it over the hole. Make sure you replace the broken PCV valve first so you get an accurate result. There should be slight suction since the engine is under vacuum. If the paper blows easily that indicates excessive blowby and could be an indication of worn rings. I know it may seem odd that it is all four cylinders but anything is possible.