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Would a loose or disconnected o2 sensor cause a code to say bank 2 is lean. I just had my tranny fixed and my car has started throwing codes. i thinking maybe one got unplugged and didn't pluged back in.
well I checked they are all plugged in and tight. i think one may have got pinched up where I can't see. I'm just going to tune the rear o2 sensors out. The code is coming up as bank to catalysit low or something like that.