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marco Posted on Mar 10, 2013
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Need to replace bank1 sensor 2 on my 2007 Nissan altima....Where is sensor located ? Thank you

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Johnny Brown

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  • Posted on Mar 10, 2013
Johnny    Brown
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Okay, let me explain how bank 1 and bank 2 sensor 1 sensor 2. bank 1 would be the side of the engine where #1 cylinder is and bank 2 would be the other side, sensor 1 is the sensor before the converter and sensor 2 would be after the converter..

on your car the sensor you are looking for bank 1 sensor 2.
you will be changing the sensor on the rear exhaust.not the front by the radiator but the rear , so look at rear of engine and start at the manifold and follow it down, you will see the first o2 sensor, that is bank 1 sensor 1 keep going down you will pass converter and the next sensor is the one you want to change that is bank1 sensor 2.


if you were to look at the front you would see bank 2 sensor 1 and follow pipe then converter and then bank2 sensor 2. this car has a v-6 engine and uses two converters some even use three , there is always a sensor before and after a converter.

hope this is helpful, remember the sensor you want is on the rear , the one one after converter.

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I would also need more specifics as to which engine you have so I might assist you in where the location of the sensor is. The Altima had a 4 and a 6 cyl engine offered that year.
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