I've been getting an error on an 02 sensor, swapped the sensor and the error stays. I traced the wires and it doesn't appear to be any issues with the wire for as much as I could see.
I don't think so. I have a crackpot car guy who spent a few minutes on it and tested the voltages coming out of the computer to the o2 sensor and he said something wasn't right. He thought it was either wires or computer. I traced the wires and they look good.
Bribery aside, they wouldn't pass me with two or more sensors set to "not ready" (which they all get set to when you reset the computer). Fortunately, my particular code was one that took a number of drive cycles to trigger, so the rest of the sensors went to ready except the problem one, I passed the inspection, and then my check engine light came on two days later
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