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Tune for rear O2s???

This is a discussion on Tune for rear O2s??? within the Computer & Tuning forums, part of the LSx Technical Help Section category; Is it possible for a feller to tune the rear O2s to where you can run LTs and cats without ...

  1. #1
    I like the way yew tawlk. Ric's Avatar
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    Tune for rear O2s???

    Is it possible for a feller to tune the rear O2s to where you can run LTs and cats without throwing a code??? I'd like to run a set into a catted Y just to keep the car actually(almost) legal, but still know if there was ever a problem with either of the cats.

  2. #2
    AnotherScreenName
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    Yes. HPTuners will do it, DHP will do it. I imagine LS1Edit would too.

    I have HPT and there you can turn off the error report or the SES light or both.

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    I like the way yew tawlk. Ric's Avatar
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    Cool.

    Now, is there a way to adjust the signal to the rear O2s to where you wouldn't have to turn anything off... as in, tuning the O2s to allow for headers, yet still throw a code if the cats get plugged???

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    Token V6 Guy
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    not that i know of.

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    You can set the limits of the o2 switching to allow for slower transitions and not be so picky to set the code, but that seems like a waste considering that they are purely for emissions only and not performance and if you have a cat or not doesnt make a difference if you have rear o2s or not...

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