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Anyone with headers have this issue??

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Old 08-18-2009, 05:00 PM
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Default Anyone with headers have this issue??

Well, i have replaced my O2 sensors two months or so ago, but today i checked and i have an o2 sensor code in my car again... WTF

Well, i checked it out in a shop and they are saying, that my o2 sensor will keep burning out due to having LT headers on... They are saying not to worry about it car will keep running fine as it already does...

Anyone here dealt with issue like that? How would i fix that?
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Old 08-18-2009, 05:02 PM
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What code and what brand of O2s?
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Old 08-18-2009, 05:10 PM
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Originally Posted by JonCR96Z View Post
What code and what brand of O2s?
Lets see..

PO155
o2 sensor heater circuit malfunction (bank 2 sensor 2)
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Old 08-18-2009, 05:15 PM
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If I'm not mistaken that's for the rear O2 sensor...which will not affect performance etc...just triggers the SES light. That sensor is to monitor the effectiveness of the catalytic converter. You can either have the rear sensors tuned out of the car, or make your own "mil eliminator". Mil eliminators used to be available...but not anymore.
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Old 08-18-2009, 05:16 PM
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Do you have cats on your car?

There isn't really much of a need for the post-cat sensors. You could just tune them out. Probably cheaper than constantly replacing sensors.
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Old 08-18-2009, 05:20 PM
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Rear O2s can, and should be tuned out once you put headers on... and double that if you don't have cats in the first place.
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Old 08-18-2009, 05:24 PM
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Thanx guys, i will tune them out as soon as i get a chance... I do have maganaflow cats right now...
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Old 08-18-2009, 05:36 PM
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You can also put in O2 simulators. They are like a fake O2 sensor. Then you don't need to tune them out because the sims will tell the PCM that everything is fine, all the time.
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Old 08-18-2009, 06:30 PM
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Originally Posted by ghardester View Post
You can also put in O2 simulators. They are like a fake O2 sensor. Then you don't need to tune them out because the sims will tell the PCM that everything is fine, all the time.
I have o2 sims and they work great! I've had them for about 2+ years. replacing o2 sensors on an lt header car does no good. If you're not running cats the only sensors to be plugged in are the front ones. The rear ones need to be disconnected and zip tie the plug up. Either tune it out, get o2 sims, or just ignore the light.
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Old 08-23-2009, 09:43 PM
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I had o2 sims up until I had my car tuned. Then I got them tuned out completely. Both ways work great, so either one would be a great choice for you
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Old 08-23-2009, 11:44 PM
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Same Problem I had
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Old 08-24-2009, 06:15 PM
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O2 sims have the possibility of throwing a high voltage code which will throw your ses light intermittently. just tune them out
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Old 08-29-2009, 09:22 AM
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o2 sims work great I've never threw a code yet plus there around $40 for a used set. that's cheaper than having some1 tune them I'd say
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