5th Generation Maxima (2000-2003) Learn more about the 5th Generation Maxima, including the VQ30DE-K and VQ35DE engines.

02 sensor help?

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Old Jul 27, 2004 | 07:06 AM
  #1  
I30swimmer's Avatar
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02 sensor help?

Infiniti I30t 2000 w/80k miles

Car has a lot of miles so should i replace my 02 sensors.. and my questions about them---


How do i replace them/ it?

where are they located?

80k miles on car. how much perfomance will i get back?

what kind do i buy?

how much will this cost?

" theres prob a link to all my answers but of course my search feature doesnt work"
Old Jul 27, 2004 | 07:17 AM
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any info would be great.. or a link to the " how to"
Old Jul 28, 2004 | 10:01 AM
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no info? come on
Old Jul 28, 2004 | 10:29 AM
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For Maxima, one O2 sensor is located at the header, bottom of the car. The other one is located at mid-pipe.
Old Jul 28, 2004 | 03:15 PM
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If you are Fed spec you have 3 O2s and if you are Cali. like me you have 4 (1 in each header and one near each pre-cat).

How do you know that you need new O2s? Is your car running badly/ throwing codes?
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