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Help locate Altima 2.5S Oxygen Bank1 Sensor 2 Forums > > Help locate Altima 2.5S Oxygen Bank1 Sensor 2 Help locate Altima 2.5S Oxygen Bank1 Sensor 2
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  #1  
Old 01-09-2016, 11:16 AM
skynet2014 skynet2014 is offline
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2009 Altima Sedan
 
Join Date: Jan 2016
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Default Help locate Altima 2.5S Oxygen Bank1 Sensor 2

Long story short, Nissan Altima 2009 sedan 2.5SL, get check engine light on, check the code indicate to change Oxygen Sensor on Bank 1 Sensor 2. down stream sensor.
Opened the hood, only see 1 sensor there, not sure if that is correct 1, can any one help? please see following pic.











Thank you very much.

Dave
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  #2  
Old 01-10-2016, 02:02 PM
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bennyb53 bennyb53 is offline
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2002 Altima
 
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Remove the heat shield just right of the oil dip stick with a 10 mm socket. The CAT should come to view. The top is sensor 1 and bottom is sensor 2. You will need a 7/8" oxygen sensor socket. Use NGK or Bosch oxygen sensor.
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  #3  
Old 01-10-2016, 02:14 PM
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smj999smj smj999smj is offline
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I would say use NTK (NGK's brand of Oxygen sensor), genuine Nissan or Denso. I've had some issues with Bosch sensors in Toyotas and Nissans. Soak down the shield bolts as the tend to rust and break when you try to remove them.
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  #4  
Old 01-13-2016, 04:54 AM
skynet2014 skynet2014 is offline
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Thank you, I will check.
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  #5  
Old 01-13-2016, 04:55 AM
skynet2014 skynet2014 is offline
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Thanks for the info. I will avoid Bosch then :)
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  #6  
Old 12-16-2020, 12:15 PM
ThatOneAltima ThatOneAltima is offline
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2011 Altima Sedan
 
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were you able to fix the problem?
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2.5s, 25s, altima, bank1, locate, oxygen, sensor

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