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Discussion Starter · #1 · (Edited)
The bank 1 is not registering a working PID
The bank 2 is stuck lean with error in test results

Catalyst won't set, etc

I was reading the Denso OE upstream sensors don't always last

107k miles

Question is, what brand sensor should I buy to replace the bad air/fuel sensors?

Are their good brands that last?

Thank you very much for any help
 

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Discussion Starter · #3 ·
I just replaced my Camry with a Denso sensor. O2 sensors are generally rated for 80-100k miles lifetime. I would say your OE Densos "lasted".
What year is your camry? what mileage did you replace yours at?

The old O2 sensors seem to last longer than the newer Air/Fuel sensors (which also cost more).

I think the sienna started using the newer air/fuel sensors in 2001. I previously had a 2000 bmw 323i and those oxygen sensors lasted over 200k (old style), but they were also rated at 100k like you said
 

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Discussion Starter · #6 ·
Yeah. Interesting. I think the newest cars are overboard with 90 sensors. But then in 7 years that will be the common place thing. =)
 
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