today i pulled these two codes, pt0138 and pt0139. Im thinking its the O2 sensor, and the computer read Bank 1 Sensor 2. Does anyone know or have more input? and how much does a sensor cost, and how easy is it to install yourself.

Thanks

 

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Go to maxima.theowensfamily.com check out TSB NTB02-051a.

 

so ur agreeing that its the O2 sensors?? btw, i dont think they will fix it for free, my car is out of warranty.

 

Help this motha out....

 

Best thing for you to do is buy your O2 sensors at oxygensensors.com, install them yourself and have dealer reprogram ECU under 8/80 warranty.