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P0430 Diagnostic Trouble Code Discussion for November 2014

Catalyst System Low Efficiency (Bank 2)

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Trouble Ticket Help Requests for DTC P0430
Help Request Posted
2006 BMW M5 5.0L MIL Lamp on VIN: WBSNB93506
P0430: Cat efficiency bank 2 generic. Hey BMW Techs. Just looking for a little information and confidence before i sell a huge cat job on this M5. As far as i can tell its needs new cats. Rear O2's are switching a little at idle (.3v - .6v) . No issues with any adaptations, vac leaks, exhaust leak...
November 07, 2014