silverpony41

I have an 08 gt that throws little black smoke when i rev it. I have heard that it may be running rich. Is this a major problem and also can i get specific instructions on how to fix it myself. Thank you.

foolio2k4

um i dont see why it would. But you can change it with the tuner. adjust af ratio

mx07gt

does it have a slightly rough idle? My guess goes to a dead coil.

silverpony41

Idle is great. The car runs perfect also.

mac10chap

it may be running a bit rich. is it throwing any codes for the front O2 sensors? mine was doing the same thing. it had a rough idle on cold start and would blow black smoke out the exhaust. turned out that brenspeed sent my tune for a 90mm MAF instead of the 80mm MAF that i have. Once i installed the new tune, it ran great.

mygt500

Probably a little rich due to the aftermarket 91 tune....no worries if she is not throwing codes and runs smooth and well at any throttle position!

silverpony41

Thank you very much for your responses. I dont think im going to worry about it anymore.