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P0430 Diagnostic Trouble Code Discussion for October 2008

Catalyst System Low Efficiency (Bank 2)

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Trouble Ticket Help Requests for DTC P0430
Help Request Posted
2001 Audi A6 Quattro 2.8L MIL Lamp on VIN: WAUEH54BX1
P0430: Cat System Efficiency Below Threshold Bank 2. First saw this vehicle a year ago for a bad cat (rattles inside). Replaced it along with O2. Few months later we got a code referring to the other cat, so we replaced it, along with the O2. Three months later the MIL is on with codes referring to both cats eff...
October 20, 2008
2003 Chevrolet Express 3500 6.0L Misfire, MIL Lamp on VIN: 1GBHG31U33
P0430: Catalyst System Low Efficiency (Bank 2). We got this vehicle in for check engine light codes p0300 multiple cyclinder miss fire and code p0340 catalytic effiency bank 2 check cat post o2 sensor voltage varrying from 200 to 800 mv same as pre o2 sensor we are recommending cat. check code p0300 check m...
October 21, 2008