2002 Nissan Maxima-Oxygen Sensor Problem Code P0139

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JimmyMan
Posts: 1
Joined: Sun Apr 29, 2012 5:50 pm
Car: 2002 Nissan Maxima

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I took my 2002 Nissan Maxima 110,000 miles V6 3.5 to AutoZone to get a code read. I got code P0139, Heated oxygen sensor- bank 1 sensor 2. What does it mean and what type of oxygen sensor should I buy before or after cat? Right, Left, Upstream, Down Stream... Im lost!!!

Thanks


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sx moneypit
Posts: 8911
Joined: Wed Aug 26, 2009 2:54 am
Car: 2010 Nissan 370Z
1986 Toyota MR2
Location: Memphis,Tn.

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The sensor is the one after the catalytic converters on the rear bank of cylinders.

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-Ben


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