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Thread: Cat delete

  1. #1
    Junior Member
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    Oct 2006
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    Default Cat delete

    What would need to be adjusted as far as parameters go when a cat is removed on a vortec 4200?
    90% of people are fools
    9% of people are somewhat smart and depend on the
    1% that know how to use EFIlive.

  2. #2
    Lifetime Member
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    Default

    I believe you delete the o2 sensors after the cats. I think you do that in engine diagnostocs dtc mil. No mil for bank 1 sensor 2 and bank 2 sensor 2.

  3. #3
    Lifetime Member Rhino79's Avatar
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    Default

    And disable cat protection.

  4. #4
    Joe (Moderator) joecar's Avatar
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    Offroad only usage disclaimer applies.

  5. #5
    Lifetime Member Chevy366's Avatar
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    Wow you can tune a P12 , or is this a older 4.2 L ?
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  6. #6
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    Wish us P10 guys could remove Cat Over Temp protection...
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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