I disconnected the battery to reset the code and turn off the engine light. I drove the car for about 70 miles since I installed the new oxygen sensor and no light. It looks like this may have done the job. I am not positive, but I think that Upper Stream, bank2 is radiator side. I'll give it a 1000 miles and post another reply.
Also, don't be stupid like me and take your safety glasses off while working under the car. A piece of rust or something fell into my eye, and a day later, I was in the ER with a painful cornea abrasion. The pain is gone, but my vision is blurry, and I have to get it checked out again tomorrow when the doctors are back to work . I think while I'm at the doctor, I'll pick up some anti-fog comfortable safety goggles. Even if a good, comfortable, manageable pair cost me $200, it sure beats the alternative.
