Oh Man that's rather unfortunate... Of course I don't know for sure, but it sounds like your rings are toast. I had a POS 2003 altima 3.5 that had that the exact issue you are having. Turned out to be fried rings @ 135K Miles. How many miles on your motor???

 

i have same issue mine is valve seal on cylinder 3 gonna fix it this week thank god i have the 1.8t much easier to deal with.

 

Lol. That's the beauty of the 1.8t! Glad it wasn't worse

 

ok....I did compression test, evening checks good, no leak down and good compression on all cylinders. but now I'm guessing 02 codes....could this cause a bad misfire?

 

If your compression is good, you have good compression rings. You assume the oil ring below it is good too, usually... But that doesn't tell us about valve guides. Those usually smoke in the morning, and the smoke goes away as you drive down the street.

You have OBD codes? What are they?

And as I recall, the PCV system is a mess too. I'd fix that before you go further.

 

ok this is getting worse, now I have 12 codes....cylinder 1,2,3,4,5,6 fuel inj. circ. open circ. also random misfire, cylinder 1 misfire, cylinder 3 misfire, cylinder 2 misfire, evap large leak, and idle speed control throttle position lower limit not attained.....this car seems to be a mistake....