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Bad MPG, o2 sensors

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Old 12-20-2012, 01:33 AM
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Bad MPG, o2 sensors

Aright so I know this has been over a million times, but I think I'm gonna change my o2 sensors on my car to get some better MPG. Getting 14.5 mpg right now 60% city 40% highway, 180 miles on a full tank, I know I can be getting way better.
Now a lot of people have told me I just need to change my primary o2's. which are those?!
Also what the part numbers for them? Would like to order them ASAP. Cannot deal with these mpg's any more
Please and thank you!
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Old 12-20-2012, 05:24 AM
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primary o2 sensors are the first sensors right after the exhaust manifold before the catalytic converter.


22691-A33B001 Bank 1 sensor 1 (by the firewall) for 2002-2003
http://www.courtesyparts.com/22690-o...ml?cPath=1956&

Same sensor fits bank 2 sensor 1 by the radiators.

Last edited by nsnrider; 12-20-2012 at 05:30 AM.
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Old 12-20-2012, 06:36 AM
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Originally Posted by nsnrider
primary o2 sensors are the first sensors right after the exhaust manifold before the catalytic converter.


22691-A33B001 Bank 1 sensor 1 (by the firewall) for 2002-2003
http://www.courtesyparts.com/22690-o...ml?cPath=1956&

Same sensor fits bank 2 sensor 1 by the radiators.
Courtesy Nissan does not list actual part numbers so the above is wrong.

22691-8J101 x2

http://www.nissanpartszone.com/Page_...6&PageID=33062
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Old 12-20-2012, 06:37 AM
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You could also try cleaning them with MAF cleaner before spending $300 on replacing them.
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Old 12-20-2012, 11:36 AM
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Originally Posted by 02whitemaximase
You could also try cleaning them with MAF cleaner before spending $300 on replacing them.
Any truth to this? Id be willing to give this a shot if anyones actually done it and seen improvement
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Old 12-20-2012, 01:40 PM
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Originally Posted by DjHackStyle
Any truth to this? Id be willing to give this a shot if anyones actually done it and seen improvement
I've never done but if you plan on replacing them anyway, what could it hurt?
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Old 12-20-2012, 02:19 PM
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I am getting 24.8 mpg. with the same type of driving with my max, so you can do better. Let me know if it helps. Good luck!
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Old 12-20-2012, 02:50 PM
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How many miles on the car.....
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