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Series I Aftermarket Performance Modifications Discussion of power adding modifications

Check engine litght decrease the power?

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Old Jan 7, 2010 | 12:17 PM
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Harvis's Avatar
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Check engine litght decrease the power?

If i install the agency cat and leave the check engine on , is truth that throws the ECU into "safe mode" and performance is decreased and you are not gaining any power at all after all these upgrades, and possibily making less power than stock ???


or it doesnt matter that i leave the check engine litght on due to o2 sensor?
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Old Jan 7, 2010 | 12:23 PM
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mike[piston eater]'s Avatar
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From: riverside, cali
no check engine light just means your not smog compliant but it will not rob you power for having it on
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Old Jan 7, 2010 | 01:23 PM
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Gr8Bullet's Avatar
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From: Sterling, VA
i have my AP mid installed and i have no problems other then the CEL on.
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