Originally Posted by sofresh
ok, I just installed the tune about 2 weeks ago, and just after the install service engine soon light came on along with a misfire after. Codes p0171/p0174 system to lean bank 1 & bank 2. I am currently communicating with Zac and Karl though email to hopefully resolve this. It just sucks to not be local.
That is a first... What car do you have and what mods?