I need to know were is my 02 sensor located on My 2000 maxima GLE, my SES light came on, The code is p0138 & p0139(bank 1 sensor 2), If anyone ever changed this sensor please let me know.

 

Depends on whether you have a fed spec or Cali spec.

On a Fed spec car, the sensor is located in the exhaust pipe after the main catalytic converter.

If the car is a Cali spec, it is in the y-pipe.

 

Its fed spec...

 

Then look at the diagram.

 

I see were I need to change it. Now I need to know were to get a good one is the Bosch 02sensors any good, or should I stick with OEM. Do anybody know the part# for the Bosch sensor or OEM....

 

I changed both downsteam O2 sensors with "Bosch Premium Oxygen Sensor with OE SmartLink". Wire colors matched perfectly, no problem with fit. For $30 more you can get the same sensor with a plug.

 

Part No. 15727 at Advanced auto. The ones with a plug say Downstream Front and Rear.

 

is this part#15727 for bank 1 sensor 2. that's the part# I need...

 

15727 is what you want. Sensor 2 is called a downstream sensor and that's what the 15727 part is. It is a universal sensor, meaning that you have to splice wires, so bank 1, bank 2, Cali spec, Fed spec have no meaning.

Personally, I'd go to rockauto.com and order the Bosch # 13969 sensor for $43.79. It has the correct Nissan plug on it so no splicing is needed.

http://www.rockauto.com/catalog/more...743&cc=1359222

 

ok I went to advance auto they said I need two 02 sensor since im getting codes p0138 & p0139, is that true????

 

No, look at the diagram again. It's your rear sensor for bank #1.

138 = max voltage monitoring of sensor 2 from bank #1
139 = response monitoring of same sensor as above

Both codes mean that particular sensor is dead/dying.

 

ok, got it I will order the Bosch # 13969 sensor, that should do the trick.