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Old 05-07-2015, 05:16 PM   #261
kch
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Quote:
Originally Posted by ironsurfer129 View Post
I have question regarding OFT, I just want to use the OFT to remove the CEL due to O2 sensor from header. Does it require "marrying" the OFT to car? And if I "unmarry" the oft with my car, will the CEL come back on?
To clarify what @Koa said:

1) Your OFT is "married" to the car whenever you flash a tune.
2) The OFT can clear CELs
3) However, to prevent the CEL from coming back, you must flash an OFT tune that specifically disables that CEL code.
4) To unmarry your OFT, you have to flash back to stock.

So I would actually disagree with @Koa and say that, for a long term solution, your answers are yes and yes.

Edit: If you have a CEL from an O2 sensor issue, it means you have a catless header, yes? If that's the case, you should really get a tune anyways, either through OFT or ECUtek.
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