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Old 01-20-2009, 09:20 AM   #1
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Reverting tune

Hey guys,

I was thinking, if you have a header installed, throws a CEL, then do a tune to eliminate it. If you go back to your stock tune, does the CEL come back?


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Old 01-20-2009, 09:41 AM   #2
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dont know? i think it deletes the 02 sensor so i dont think so. but if u go back to stock u can put the tune back to stock as well
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Old 01-20-2009, 09:45 AM   #3
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Quote:
Originally Posted by tetra View Post
Hey guys,

I was thinking, if you have a header installed, throws a CEL, then do a tune to eliminate it. If you go back to your stock tune, does the CEL come back?
yes, the tune turns off the 2nd. o2 sensor. when you go back to oem tune your o2 sens. will be enabled again and throw a code.
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Old 01-20-2009, 09:52 AM   #4
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Hmm, so this isn't a good thing if you would have to bring in your car under warranty to a dealership for service I guess... bummer..
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