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I am no expert, but I saw those codes twice. Neither time was a bad O2 sensor.
The first time, the car wouldn't idle well and eventually would not start. A local indy shop told me to test the fuel pump relay,,, they were right and it was a cheap and easy fix. Doesn't sound like your problem though. The second time it was an early warning that the AOS was going out. Best test for that is to try to remove your oil filler cap while idling,,, too much vacuum/hard to remove may indicate bad AOS, along with increasing smoke at start up. Hope that is somewhat helpful.
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