Quote:
Originally Posted by Jeffman
Yes. I actually did that first. But got the SES code. I don't have a BT cable to diagnose so I installed the Cobb Stage 0 so I could read the codes. I also pressed "Reset ECU" on the Cobb, thinking this would reset the adaptations, but I'm not sure if this really resets adaptations.
Today I don't have any codes, yet...it figures, as I was going to uninstall the Cobb anyway as I'm due for rear rotors and brake pads at my neighborhood BMW service center.
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I have had this issue intermittently ever since I ran E85 on PROcede and now occasionally on my Cobb after switching back to a pump gas map after running E40. I couldn't open your logs but when my car isn't running lean or maxing fuel trims. I suppose it could also be an O2 sensor issue but that is just a guess on my part. Usually I just clear it and doesn't come back.