bad O2 sensor

[98[Ta]Hoe]

Should be four 2 up and 2 down if I'm not mistaken.

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are they all the same?
and thanks for your response

---------- Post added at 06:25 AM ---------- Previous post was at 06:24 AM ----------

are they all the same?
any good brands anyone recomends?
and thanks

 

[Tahoebigdog03]

They should be the same also I would try to get close to OE as possible.

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[BirchyBoy]

Should be four 2 up and 2 down if I'm not mistaken.

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Yes. Mine was the bank 2 downstream sensor and had a P0430 code. 50/50 chance it was the sensor or the cat. I took the cheaper option first and tried it.

 

[Tahoebigdog03]

Same code dude the cheapest route is what I tried also and it work. Lol

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[Sho'Tyme]

I agree with Josue ...i had the same issues...

 

[jomulk56]

are they all the same?

and thanks for your response

---------- Post added at 06:25 AM ---------- Previous post was at 06:24 AM ----------

are they all the same?
any good brands anyone recomends?
and thanks

I used Bosch when I did mine and there's 4 different part numbers to choose from based on your model. The front and rear should have a different number tho.


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[valleytahoe956]

Ok, I went to auto zone to find out which ones I needed to replace & they told me it was bank 1 & bank 2.. Would those be the ones before the cat ??

 

[missta]

I have check engine light as well...replaced all sensors...light went off. .then returned

 

[BirchyBoy]

Yes. Mine was the bank 2 downstream sensor and had a P0430 code. 50/50 chance it was the sensor or the cat. I took the cheaper option first and tried it.

Just to come back to this, my light came back on after a few hundred miles. Replaced the cat and no light after 7k miles.

 

[missta]

Did you order your cats online or had it done at a local shop BirchyBoy? How much did it run you?