I have a 1998 200sx se and recently like 3 days ago. A white cloud came out of my exhaust and smelled badly, maybe like burnt gasoline. The car kind of de-accelerated as well when this happened. I've noticed the gas has gone done considerably as if my engine is burning gas way more than usual. I did bring it for a tune-up about 6 weeks ago. Car has 104,000 miles on it. Any solutions please..

200sx owner

--
Nissanowner