Fuel Problem?

[QuA]

Im not sure if its just winter or what, but my exhaust is smelling pretty damn nasty these days also im starting to get a little too much black build up around my exhaust tips.

QuA

[Derick]

Running rich maybe???

My Nissan Altima suffers the same symptoms when it gets cold. It go's away in the warmer weather though so, whatever. This doesn't happen to my VW though.