matty

after i make a wot run thru a couple gears my exhaust pukes some blackish smoke for a bit on decel. any ideas what that is?

i know sometimes when u go wot its normal for a puff of black smoke to come out. this is different. this is on decel.

matty

after talking to ihor, i think thats his name. i think the problem is the pcv valve. i am gonna pull it off tonight and see if it only blows in the direction of the arrow only. if anyone else has something to add please share....

IRPerformance

iTrader: (41)

Try the pcv first. If not then I'd look into installing a catch can. You turbos could be getting tired and pushing oil.

amp

iTrader: (50)

id tend to suspect your runnin rich first with black smoke...

GoodfellaFD3S

iTrader: (213)

It could be your turbos. after I ran 15 psi on my twins for about a year they started to behave similarly. Mine had around 90k miles, I know yours have lower mileage, so hopefully that's not your problem.

matty

gotham also suggested that i run 20 50 oil rather than the 10w 30 that i have been running successfully for 6 yrs now. anyone confirm this??

i also think i could be ruinning rich as well. but when the car was tuned a few yrs back it didnt do this. this problem just started last week.

anyone know in general terms the life of the pcv valve? i know mine ios original. i read oin here while searching that these are replaced when a car is tuned up.

i took the wife out for dinner tonight so i didnt get a chance to test my pcv but i will be doing this first thing tomorrow

also rich, i am not ruling out the turboes as i have been running 15psi for 3 yrs now atleast. but this problem only occurs on decel. no other time. i was under the impression that if it was the turboes it would happen even at wot. hit me up on im later if u are free...wanted to pick your brain on a few things. i was already bothering ihor earlier...lol.

anotyher thing i need to do is replace my 02 sesor. i have been running catless for 5 yrs now. i am sure that sucker needs replacing. that might cure some other smaller issues i am having. is the 02 sesor accesssible from under the car? is this an easy job?

i plan on spending some time on the car tomorrow or this week as i am on vaca from work so this maybe something i could change out myself. i think guys are using autozone 02sensors?

tks for the feed back guys!