so today i was driving my 2000 civic it has a b18 turbo in it. My friend was behind me and i got on it while merging and he pulled up beside me and told me i blew alot of black smoke.. what could this be from? Running rich? my A/F said it was a little rich at the time.

thanks

 

Thread titles MUST be subject specific so that members browsing topics can easily understand the tech problem without reading the post:

https://honda-tech.com/forums/showpo...12&postcount=1

Please familiarize yourself with the stickies at the top.