So after 3 weeks of the dealer having my vehicle, they finally resolved the issue...corrupt values stored in the computer. I know the car will learn and adapt to how you drive and I'm assuming this is what values were corrupt. They tried the fuel pump, oxygen sensor pre-cat, left the battery unplugged overnight to reset, checked coils and plugs, several other things and reset those stored values. I got out of there only paying for 1.5 hrs for the original diagnostic fee.