Quote:
Originally Posted by MrSchlegSSR
I have an 05 with Dynatech headers and highflo cats. I have had these on for serveral months and just got the code yesterday. I have 2 questions:
1. Is disabling the rear O2 sensor a good idea? Will it create any damage if it stays this way?
2. I have an exhaust temp gauge I want to get installed. Where should I locate it and what would be the range I should be looking for?
Any other information would be greatly appreciated.
Thanks in advance.....
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MrSchlegSSR-
I was having the same problem with my 06 after header/high flow cat install. From what I can find out this is a fairly common problem with LS1/LS2 cars with high flow cats. I believe that code is a "Catlyst Inefficiency Code" which basically means the exhaust is flowing so well now that the rear O2 sensors think the converters are not working efficiently. There is a wealth of information on this on the LS1 Tech forums. Apparently the rear O2 sensors can just be turned off/disabled with no ill effects so the computer does not set codes anymore.
I just had a dyno tune on my O6 and had this done at that time. So far, so good.
As far as exhaust temp I don't really know the answer to this one. Any point except in the individual tube coming off each cylinder obviously will just give you an average temp for that bank of cylinders, for instance if you put it in the header collector.
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