The Nissan Path

Hello, In addition to my problems in my other posts (P1135 killing me) i got some new codes. P0138 appeared the other day. Cleared it and now it comes back as PO140. Both have to do with voltage on the passenger rear 02 sensor.

Do you think I should replace or wait until I clear the other codes? Any other suggestions?

It's likely the sensor, itself, so I would just replace it. I only use NTK or Denso O2 sensors. It would be the one on the passenger side in the US (or right side), rear.

Went to junk yard and got another camshaft sensor for bank 2 off same model pathy.

Now everything is fixed. It cleared all my CEL problems.