C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

O2 Sensor

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Old Nov 22, 2006 | 01:05 PM
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Default O2 Sensor

Looks like I have a bad one on my 96 LT4.

1. Who makes the OEM ones?

2. Where is a good place to buy them?
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Old Nov 22, 2006 | 02:55 PM
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I have Bosch and have had good look with them over the years, though a few people have had problems with them. Just get a name brand at you local auto parts store and you will be fine.
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Old Nov 22, 2006 | 03:01 PM
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I'm having issues with my O2's as well. I replaced the faulty on about 1000 miles ago with a bosch unit and now I'm having the same issues as before. The new O2 has crapped out in only 1000 miles if that. I just ordered a Denso O2 that will be here friday and hopefully end my O2 problems. I wouldn't recommend bosch as an alternative.
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Old Nov 22, 2006 | 05:10 PM
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Originally Posted by JJ 86
I'm having issues with my O2's as well. I replaced the faulty on about 1000 miles ago with a bosch unit and now I'm having the same issues as before. The new O2 has crapped out in only 1000 miles if that. I just ordered a Denso O2 that will be here friday and hopefully end my O2 problems. I wouldn't recommend bosch as an alternative.
Dou have a part # for the Denso?
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Old Nov 23, 2006 | 12:00 AM
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I'll check the reciept. Can't remember off the top of my head. I ordered them from autozone.
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Old Nov 23, 2006 | 12:06 AM
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I like the NGK /NTK O2 sensor.

http://www.ngk.com/results_app.asp?p...4&AAIA=1041332
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Old Nov 23, 2006 | 04:05 AM
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I use AC Delco exclusively, I have had issues with aftermarket sensors both with life spans and with proper fuel trims.
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Old Nov 23, 2006 | 05:23 AM
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I am using a Bosch O2 sensor in my 86 and I have AC Delco's in my 95.

Check your local Chevy dealer.
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Old Nov 24, 2006 | 02:34 PM
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The part # for the denso O2 sensor is 234-4012.
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Old Nov 24, 2006 | 03:34 PM
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I bought new GM sensors from Fred Beans (forum supporting vendor). They were ~70 each.

I prefer OEM, but I have had good luck with Bosch too.
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Old Nov 24, 2006 | 10:50 PM
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I've changed all in my 95.

Replaced with discounted Borg Warners I found on Ebay,,,,3 for $90

Only problem was the pas side one flamed out after 2,500 miles

Replaced with AC Delco from Rockauto.com (Excellent Pricing & service).
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