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Thread: O2 Replacement
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02-02-2010, 06:35 AM #1
O2 Replacement
I am in the midst of swapping in a set of LT's. Upon pulling my front O2's it appears that one is most likely original and the other has been replaced at some point. I understand that the sensors degrade over time and that they should be replaced somewhere between 75,000 - 100,000 miles. As our car is creeping up on 74,000, and I am working on the exhaust system, now would be a good time.
I have read somewhere on here that utilizing Corvette O2's is recommended as they provide faster feedback to the PCM. However, no details or part numbers were provided. Any recommendations on what to get, what to avoid and so forth? The rear O2 sensors will be removed and deleted in my tune, so they are not an issue.
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02-02-2010, 08:00 AM #2
Its a Bosch sensor, can't remember the part number either, but Frost had them on his site awhile back, you might check there
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02-02-2010, 08:46 AM #3
- Join Date
- Oct 2007
- Location
- NC
- Posts
- 635
SOM- 1998 T.A.
Bosch 1311.
Denso makes the OEM o2's but they are more $$$$ and I don't remember the part #
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02-02-2010, 08:52 AM #4
Thanks guys.
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02-02-2010, 09:37 AM #5
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02-02-2010, 09:49 AM #6
i have heard that the bosch ones arent real good? Any truth tothis?
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02-02-2010, 10:09 AM #7
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02-02-2010, 12:13 PM #8
I have a 1 1/2 on my bosch O2's and they work fine. No problems at all. After my headers were installed I ran the old ones till the coating baked in and then switched to new ones.
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02-02-2010, 12:25 PM #9
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02-02-2010, 01:01 PM #10
I've also read some bad things about the Bosch, but it sounds like a few people on here have had good success with them.
I think the bad reviews may have came from people whose tuning wasn't proper and thus premature problems with the O2's.
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02-02-2010, 01:32 PM #11
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02-02-2010, 02:02 PM #12
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02-02-2010, 02:02 PM #13
Yepp, Too much Fuel and your 02 will take a pooo... Iv had mine for about 3 years, no issues
J
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02-02-2010, 02:30 PM #14
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02-02-2010, 05:39 PM #15
Ordered a pair of 13111's this afternoon so I should be all set for my header install. I removed the spark plugs and dropped the driver side manifold tonight after pulling all the top side stuff on Sunday. So far, so good. Is it ok to put a dab of anti-seize on the O2 threads as long as I don't get carried away, or is this not necessary with stainless headers?
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02-02-2010, 06:24 PM #16
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02-02-2010, 06:40 PM #17
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02-03-2010, 06:24 PM #18
Next question: I was a little disappointed at how grimy the Kooks LT's were. They were literally full of metal shavings and other gunk so I hosed them out with brake clean and ran a couple of papertowels soaked in denatured alcohol down each tube to clean them out. I have heard that with ceramic coated headers that the initial start up "burn in period" can harm your O2 sensors. Of course, these are stainless but there is probably still some oil and other stuff that I missed. Should I use my old O2 sensors when I first start the car to allow the LT's to cook off any remaining crap?
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02-03-2010, 07:04 PM #19
that's a tough call really. I don't think there would be enough residue in there to harm anything. If you wanted to be certain use your old ones since changing them really is just a couple of minutes. I probably would just put the new ones in there and call it a day but that's me.
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02-03-2010, 07:05 PM #20
- Join Date
- Nov 2006
- Location
- Indianapolis
- Age
- 61
- Posts
- 5,188
Black- 2000 WS6 6spd Hooker LT
Yes that is a good idea, use the old one for the first couple hundred miles, then switch them. I never did that, and I still have my OE sensors, time to change them now anyway. 86k on the car.
Last edited by Too Fast; 02-03-2010 at 07:07 PM.
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