LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Failed Emissions horribly....

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Old 05-26-2004, 02:19 PM
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Angry Failed Emissions horribly....

thats what my mechanic is telling me. can anyone tell me what the usual cause of this is?

my car is all stock except for the Borla cat-back and K&N and never failed before.
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Old 05-26-2004, 02:20 PM
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air/egr not functioning?
bad cat?
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Old 05-26-2004, 02:50 PM
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Need to give more detail info on what?

Vinny
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