Originally Posted by Agent K

Ok. I did a little data logging. The code only pops up when my cars idling. It comes on about once or twice a week. But I usually only drive it on the weekend.

O2 sensor B1, S2:@ idle .02V / @ 3k, 3rd gear .8V

O2 sensor B2, S2:@ idle .02V / @ 3k, 3rd gear .8V

I'm 99.9% sure the Uprev tune will take care on this issue. I plan on getting it early next year. In the meantime, I'll keep clearing the code.