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P0431 Diagnostic Trouble Code Discussion for March 2012

Warmup Catalyst System Efficiency Low (Bank 2)


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Trouble Ticket Help Requests for DTC P0431
Help Request Posted
2003 Dodge Ram 1500 Truck 4.7L MIL Lamp on VIN: 1D7HU18N23
P0431: Warmup Catalyst Efficiency Below Normal (Bank 2). I guess one of my biggest problems is Mitchell has no info on these 2 codes. Can someone kinda give me a clue of where to start. Is this usually a convertor fault or o2 sensor fault? Thanks, Nate
March 20, 2012
2003 Dodge Ram 1500 Truck 4.7L MIL Lamp on VIN: 1D7HU18N23
P0431: Warmup Catalyst Efficiency Below Normal (Bank 2). I guess one of my biggest problems is Mitchell has no info on these 2 codes. Can someone kinda give me a clue of where to start. Is this usually a convertor fault or o2 sensor fault? Thanks, Nate
March 20, 2012