2001 Nissan Maxima Po138-po139 code

2001 NISSAN MAXIMA
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FRED MCPHERSON
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Engine Performance problem
2001 Nissan Maxima 6 cyl Front Wheel Drive Automatic

service eng lite on, code po138-po139 po160
where are these sensor located on the vehicle
Jul 21, 2009 at 5:34 PM
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STEVEW84
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
P0138 and P0139 has to do with the Bank 1 Sensor 2 oxygen sensor. P0160 has to do with the bank 2 Sensor 2. Depending on how long the CEL has been on for then I would guess both oxygen sensors are bad.
Jul 25, 2009 at 9:24 PM
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