Help, engine started to smoke bad.

[Stainbox12]

Yesterday, i took the car for a drive, and i stepped on it, i noticed that when i did, a very big puddle of smoke came out, it was gray/white. I thought, i melted a piston, because this has happened to me before, but i parked the car, and i noticed my oil was very low, this makes sense, since i did an oil cooler job and i didn't check my oil level after doing so. I said, o well, i blew the engine again, but i went to the store and added 2 full quarts of oil, i even think i added more than i was supposed to, because now its past the dipstick MAX. After i added, the oil, i stepped on it again, and once again a whole bunch of smoke came out of the exhaust, i noticed some oil around the turbo housing, and also some on my tailpipe, the car still idled fine, so i thought maybe it was the rings. I came home, and i started checking things, i then noticed, i had a little rubber plug, plugged to the valve cover, where usually a catch can is connected (or when stock, a hose that goes to the intake). I plugged this little hole days earlier in an attempt to stop some air leaking while doing a boost leak test, i took out this little rubber plug, and took it out again for a drive, all of the sudden, the car didn't smoke anymore and it pulled fine, just like before. Now, besides, engine/internal damage that i can figure out/fix on my own, i wanted to know, if there's adverse effects by plugging this little valve cover hole. I assume, that air could not escape, through the valve cover, caussing excessive crankcase pressure, making oil going past the rings and being burned. What do you think? Thanks.

 

[gob4sho89]

I think you're right. I did the same thing last summer.

 

[Stainbox12]

I think you're right. I did the same thing last summer.

Any more details? Thanks.

If my theory is right, then all this years working on my dsm prove that i've got some knowedge. Unless someone proves my theory wrong, then i guess, i should feel good about my diagnostic.