Recently my car has seemed to have a bit more carbon shooting out of the back at startup. I let it sit for a little while on startup the other day and after about 5 minutes there was a nice black spot on my driveway. Am I running rich or could it be something else? It seems weird this would just seem to get worse without me modding or doing anything different. Help me out here plz.
Edit. The only mod done since my last tune was my exhaust.
Edit. The only mod done since my last tune was my exhaust.
