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O2 Sensor Error Code P0161

1K views 1 reply 2 participants last post by  Check Codes 
#1 ·
Gentlemen, I want to confirm that the following error messages are for the back two O2 sensors past the catalytic convertors.

a) Bank 2 Sensor 2
b) Bank 1 Sensor 2

I want to order on line the correct 02 sensor the comes with the correct length of wire to replace with sensors with the least amount of trouble. The cats are not in great shape so I am not sure what life I can expect from the sensors.

Thanks David
 
#2 ·
If these coded at the same time, I would first get under there and inspect things. It's possible some road debris caught the wires.

Otherwise, yes, sensor 2 refers to the ones after the front cats. They are in the pipes just ahead of the transmission.

Tip: do not just look for them online. Go to Bosch's parts finder and look them up for your model. Then look for those part numbers online. Least amount of trouble would mean the direct fit replacements.

Good luck.
 
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