C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Do I need to retune after smog pump delete

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Old Aug 15, 2020 | 05:28 PM
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Default Do I need to retune after smog pump delete

Deleting smog pump on my 89 so I can put aftermarket Headers.Do I need to have the car tuned?
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Old Aug 15, 2020 | 05:51 PM
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No. You will be fine. Wait for real mods to get a custom tune.
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Old Aug 15, 2020 | 07:27 PM
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Cool thanks good to know!!!!always thought you had to change factory tune to pull emissions components.
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Old Aug 15, 2020 | 08:19 PM
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For an EGR delete maybe but even then... I wouldn't worry about it.
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Old Aug 15, 2020 | 09:57 PM
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I never retuned after deleting the smog pump on my 91 many years ago and never had an issue. Should be the same on your car.
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Old Aug 17, 2020 | 01:06 AM
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Just did this a few weeks ago on my '85. No codes, no issues, not sure if there's any performance gains but to be honest the car feels snappier. Could all be in my head though.
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