I?m just wondering if anybody has come across this. It?s a G8GT with E38. When you are driving the car will feel as if it is stuttering but upon further investigation the Cylinder Airmass is spiking high causing rich and low timing, according to the VVEtable. I have not read very much about this issue. I did do the Air Calc Patch which is the only thing I have read that is close to this problem. It is very annoying and I?m sure not good for the drivetrain. It only seems to do it when ambient temperature is below freezing. It?s my winter car so I gotta drive it. Anything along those lines has anyone ran into? I appreciate any help or brainstorming.