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· Function over form
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Discussion Starter · #1 ·
My stock O2 sensors have a whole lotta miles on them and I'm looking to replace them soon as regular maintenance. I believe my car is a Cali OBDII car as it has all of the features of one.

So, on a '97 NA how many O2 sensors will I need and can they be reused when I go NA-T later this Summer? I would imagine with newer sensors that the car will drive much smoother and better overall. The sensors I have on now are the original OEM and are probably so clogged with carbon that they aren't reading as efficient as they could be.
 
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