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I knew that, but had to be sure, since the Advance guys told me bank 2 was the RH side. I guess this thing is up on the exhaust manifold close to the firewall. Hope it's not too tough to get at.
An interesting thing I noticed this AM, the check engine light is no longer on. I have not yet touched anything under the hood. So, me thinks it's a wiring problem vs the sensor itself.