# Question for the LT1 guys...

**URL:** <https://forums.speedlife.net/t/question-for-the-lt1-guys/46545>\
**Category:** NYSpeed Automotive\
**Created:** [April 10, 2008, 5:43am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545 "2008-04-10T05:43:33Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Mike93](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike93/32/7325_2.png) [@Mike93](https://forums.speedlife.net/u/Mike93)\
**Post date:** [April 10, 2008, 5:43am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/1 "2008-04-10T05:43:33Z")

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'94 Caprice LT1…I’d like to lose the smog equipment and EGR. On my Mustang and my SHO the computers corrected any imbalance, was wondering how the GM/Caprice computer reacts??? If all is well I will be blocking all this crap off. ALso, the car does not have a check engine light so I’m not worried about that end of things, just want to make sure the engine performs well.

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**Author:** ![97FormulaWS-6](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/97formulaws-6/32/7384_2.png) [@97FormulaWS-6](https://forums.speedlife.net/u/97FormulaWS-6)\
**Post date:** [April 10, 2008, 5:49am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/2 "2008-04-10T05:49:33Z")

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On my bird, I just had to program the stuff outta the ECU and it ran fine. Pulled the Cats, EGR, and Airpump all off.

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**Author:** ![Mike93](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike93/32/7325_2.png) [@Mike93](https://forums.speedlife.net/u/Mike93)\
**Post date:** [April 10, 2008, 6:43am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/3 "2008-04-10T06:43:56Z")

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> [@97FormulaWS-6](#):
>
> On my bird, I just had to program the stuff outta the ECU and it ran fine. Pulled the Cats, EGR, and Airpump all off.

On an OBD1 car do the same rules apply?

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**Author:** ![97FormulaWS-6](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/97formulaws-6/32/7384_2.png) [@97FormulaWS-6](https://forums.speedlife.net/u/97FormulaWS-6)\
**Post date:** [April 10, 2008, 6:47am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/4 "2008-04-10T06:47:54Z")

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Should be the same from what I remember, just easier to program out or “trick” seeing there are no after-cat O2s.

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**Author:** ![CrazyLT1](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@CrazyLT1](https://forums.speedlife.net/u/CrazyLT1)\
**Post date:** [April 10, 2008, 6:51am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/5 "2008-04-10T06:51:35Z")

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Yes, just get that stuff programmed out of the computer. It will run fine.

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**Author:** ![Mike93](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike93/32/7325_2.png) [@Mike93](https://forums.speedlife.net/u/Mike93)\
**Post date:** [April 10, 2008, 6:54am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/6 "2008-04-10T06:54:45Z")

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How do I go about pregramming it out??? What if I just block this stuff off without reprogramming…does the car not run well then???

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**Author:** ![joelster](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/joelster/32/7258_2.png) [@joelster](https://forums.speedlife.net/u/joelster)\
**Post date:** [April 10, 2008, 11:37am UTC](https://forums.speedlife.net/t/question-for-the-lt1-guys/46545/7 "2008-04-10T11:37:45Z")

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My car never threw any codes when I had my headers installed (non-egr) and took out the cats. It’s a '94 OBDI car.