Rich idle, but not rough
 

Hey guys got a b16a2 with a gt28 garrett, i had an exhaust leak were the turbo and downpipe meet, after i fixed it the car idles very rich, my a/f gauge needle is all the way to rich 8:1 and it stays there till i move, other than that the car runs fine, any ideas what it could be

Re: Rich idle, but not rough
 

Was the car originally tuned with the exhaust leak? If so you probably need to tweak the tune.

Re: Rich idle, but not rough
 

There was no exhaust leak during the tune

Re: Rich idle, but not rough
 

Your motor could have lower compression, weak spark etc.