GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Does anyone know what these Codes are??

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Apr 30, 2005 | 02:14 PM

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CAMMIN03'

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Does anyone know what these Codes are??

P0420 and P0430

Im pretty sure its a exhaust code... I had my cats taken off a wihle ago and its been coming on everysince... Just making sure...

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