The second code indicates that the o2 sensor is not working. As mentioned above check for a disconnected harness or bent pin. The next step would be replacing the oxygen sensor.
FYI, I had the same code. Visually checked everything and then replaced the oxygen sensor. Still had the same damn code. I pulled the transmission/o2 harness, but couldn't find the short. Every time I checked the wires, they showed continuity. I ended up buying an o2/transmission harness on ebay for $20. No more problems after that. Just something to keep in mind, if all else fails.
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