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PO138, P0140

 
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Wes



Joined: 18 Jun 2008
Posts: 96

PostPosted: Tue Oct 22, 2019 7:13 am    Post subject: PO138, P0140 Reply with quote

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?
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smj999smj
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Joined: 22 Jan 2012
Posts: 5436
Location: Prospect, VA

PostPosted: Thu Oct 24, 2019 12:19 am    Post subject: Reply with quote

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.
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2006 Pathfinder LE VQ40DE AWD, aftermarket radiator, Airlift 1000's, Bilstein HD rear shocks, Doug Thorley shortie headers and mid-pipes, Magnaflow 12580 muffler, aFe Momentum GT CAI w/ dry filter, XTP plenum spacer, Superchips Flashpaq tuner
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Wes



Joined: 18 Jun 2008
Posts: 96

PostPosted: Thu Oct 24, 2019 12:38 pm    Post subject: Reply with quote

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.
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