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LTs = burning O2 sensor

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Old 04-26-2008, 07:30 AM
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Originally Posted by 00ChevyScott
the leaks are after the O2, so I'm good on that one.

Also, my particular O2's are the exact same for all 4 of them. I work at oreillys and even in the computer, it shows 2 different model O2's. It seems a bit weird to me, but theyre all the same.

So should i take it to my tuner and get him to set it to open loop? and i can tell my mileage has decreased and my truck deffinately smells like its running very rich. I need to get him to wideband it again.
No. Don't go open loop unless you have the tuning software and can tune your ve into place.
Old 04-26-2008, 09:30 AM
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Ok, so the question still remains.
What helps this problem? From what i understand, the exhaust stream is actualy too COLD? is that correct?
Old 04-26-2008, 09:37 AM
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Ok..

I do have the PS headers, ORY, and no rear cats. My headers are coated, and just recently the number one O2 sensor coded. Truck has 115k mi on it, so I changed both. Coding gone and no problems.
Old 04-26-2008, 04:41 PM
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Originally Posted by 00ChevyScott
Ok, so the question still remains.
What helps this problem? From what i understand, the exhaust stream is actualy too COLD? is that correct?
Not really but yes at very low exhaust stream speeds. At idle you can have temps of 500*. THe o2's need 700* to be the most accurate. The heaters worked good b4 under the stock setup. For some reason some people don't have issues. (like lady3bglover)


I think it's 700*'s. hmmm...I could of sworn.

Originally Posted by lady3bglover
Ok..

I do have the PS headers, ORY, and no rear cats. My headers are coated, and just recently the number one O2 sensor coded. Truck has 115k mi on it, so I changed both. Coding gone and no problems.

1 out of 5 satisfied customers. LMAO You are the chosen one. I have been on pt.net for 4 yrs now and have seen this complaint a thousand times. Sometimes it is real. Some times it the headers. Sometimes people don't give all the info and we miss things. Consider yourself lucky. What code did you get by the way? There are quiet a few for the o2's.
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