I have a 2000 Xterra V6 with 130k miles. I just had the timing belt and lots of maintenance done. Now the Service Engine Soon light is on and the dealer says the computer is showing error codes of P0131 and P0151 for two O2 sensors.

They gave me service bulletin NTB00-004B which showed how they can install a ground sub-harness between the intake manifold and the right side head which may stop the codes. They said when they get both codes simultaneously, that is the first thing they check. They didn't do any diagnostics yet. Anyone else have this issue with a Nissa V6?

Thanks,
Ted