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Thread: C7 with two codes cant be disabled in tune file

  1. #1
    Lifetime Member wesam's Avatar
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    Default C7 with two codes cant be disabled in tune file

    I have a problem with two Corvette C7 with after market Catback systems the cars showing two codes : P12E7 and P12EB
    but when i search for the codes in the tune file for the cars i could not find it to disable it

    Any help will be appreciated
    Thanks in advance
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    EFILive Tuner

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    If you disconnect the OEM exhaust flow control valve, you will likely set those codes (and often more). I believe those DTCs are from the BCM (GM may be calling it a CCM in the new Corvette).

  3. #3
    Lifetime Member wesam's Avatar
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    So what people do when installing aftermarket exhust system im C7 ?
    Is there any way to disable these codes ?
    EFILive Tuner

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    Lifetime Member GMPX's Avatar
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    I suspect you might have to put some sort of resistive circuit where the solenoid used to be so the controller (I thought it was the FSCM) doesn't report the code.
    I no longer monitor the forum, please either post your question or create a support ticket.

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    Quote Originally Posted by wesam View Post
    So what people do when installing aftermarket exhust system im C7 ?
    Is there any way to disable these codes ?
    As an example, if you look at Borla’s website, you will see that they offer 2 cat-back kits for the C7. For all C7’s, the AFM exhaust flow valves (before the mufflers) are retained in the Borla AFM kit. For C7’s with the NPP exhaust (Z51 option) there are also exhaust flow valves after the mufflers.

    Any cat-back kit without these flow valves (or that do not retain the OEM flow valves) will cause DTC issues.

    Regarding what to do with a cat-back kit that does not incorporate the exhaust flow valves ... don’t use it, unless you are willing to have the MIL on forever. I believe some people who installed kits that did not incorporate the exhaust flow valves – ended up removing these from the OEM exhaust system, plugging in the electrical connectors, and then mounting them out of the way.

  6. #6
    Lifetime Member wesam's Avatar
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    It seems that the other software can flash the Chassis Control Module now
    I hope this will be added in the future in EFILive

    Thanks in advance
    EFILive Tuner

  7. #7
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    Quote Originally Posted by wesam View Post
    It seems that the other software can flash the Chassis Control Module now
    I hope this will be added in the future in EFILive

    Thanks in advance
    Have you seen this in person or just going on "rumour" around the place. Screen shots would be great.

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    There is an emulator for the valves....

    Contact me.. i might be able to help you
    "All that is needed for the triumph of evil is that good men do nothing..."

  9. #9
    Lifetime Member wesam's Avatar
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    Screen shots in the first post you can check it
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  10. #10
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    Quote Originally Posted by wesam View Post
    Screen shots in the first post you can check it
    yeah of the "tuning software" on offer from other brands...not your fault codes!! I included your post with what the query was in reference to....

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