Originally Posted by pcordes1979
Will have to see how the car behaves over the next couple days, but may be prudent to replace the front O2 in any case and see how things go. I've been doing my own car maintenance for 20 years now and never recall seeing a similar thing happening.
Do you have a scan tool that can read live data? Can you look at the O2 voltage output and the ST/LT FTs? Much better that the parts cannon.