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Ya lo remplace dos veces el catalizador y sigue igual el problema
Vehicle: 2004 GMC Sierra

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HI there

This code is for the catalytic converter on bank 2 not working properly. Most of the time the converter itself is the cause of the issue, but there are other possible causes. Here is a list of other possible causes for you.

P0430 GMC - Catalyst System Low Efficiency Bank 2

Read more: https://www.autocodes.com/p0430_gmc.html

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