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Old 05-30-2019, 08:09 PM   #7 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 59.69 mpg (US)
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Quote:
Originally Posted by Shaneajanderson View Post
That's what I was taught, and I've read as much here too, lots of the guys here replace the O2 sensor on a car they buy by default. I would think a bad upstream O2 sensor a lot of times wouldn't throw a code, especially when there is only one of them.
My Insight's was original at 250k also, and was in working order. Good thing too, since they're like $200. The downstream sensor should throw a code if it disagrees with the upstream sensor, and I'm almost certain the Odyssey has a downstream one.

https://www.rockauto.com/en/catalog/...2)+sensor,5132
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