i have had my cms stage 1 cams in my 99 stang for 2 years now and have had all the same issues i got a email tune from brookspeed wich worked great took care of the check engine light and all the codes and my idle problem, i highly recomend them give them a call ....
i called them a week ago and told them what i had done if they could sent me like a starter type tune to adjust the car a little bit and they said no...thats where i got mine from so i figured id give it a shot
I'd call AM again. I got a email tune a month ago for my car with a MHS stage 2 PI cam. It made a huge difference than the bolt-on PI swap tune I was running before.
ill call them again..it should be free since i bought the tuner there...i just installed new c.o.p's too...seemed to help a little bit but not much...thanks guys