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o2 Sensors, all of em?

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Old 03-09-2011, 08:14 AM
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Default o2 Sensors, all of em?

How helpful would it be to my car to replace all 4 vs the one that is throwing codes?


I just found out how expensive each one is =O
Old 03-09-2011, 08:49 AM
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I wouldn't. The two rear sensor have no impact on drivability. Just do the one that is bad.
Old 03-09-2011, 09:01 AM
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Much Appreciated, learn something new everyday!
Old 03-09-2011, 09:06 AM
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Just curious,


This would be an o2 sensor right?


"Main catylist below threshold bank 1."
Old 03-09-2011, 09:21 AM
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Originally Posted by Philhawtin
Just curious,


This would be an o2 sensor right?


"Main catylist below threshold bank 1."
Normally it means your cats are on their way out.
Old 03-09-2011, 10:00 AM
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Yea a few months ago i had pieces rattling around on my driver side cat...

Will this effect emissions? i need to register it but need to have it tested first. What would be the fix for this?
Old 03-09-2011, 01:49 PM
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Normally a new cat.
But you can try the new O2 sensor.

A rattler generally needs to be replaced.
Old 03-09-2011, 04:17 PM
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The pieces have since blown themselves out of the tailpipe.

No more rattling, just a throatier sound : )
Old 03-09-2011, 05:15 PM
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And no mo emissions....you'll probably need a new cat to pass.
Old 03-09-2011, 05:38 PM
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Yup. Time to buy a cat. You might be able to cheat by forcing readiness on all codes except cat efficiency, but the right route is to replace the cat.


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