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P0431 Diagnostic Trouble Code Discussion for November 2006

Warmup Catalyst System Efficiency Low (Bank 2)

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Trouble Ticket Help Requests for DTC P0431
Help Request Posted
2001 Audi Allroad Quattro 2.7L MIL Lamp on VIN: WAUYP54B81
P0431: Warm up catalyst B2 threshold below efficiency. Hey evreybody, This car seems to have no driveability problems just MIL lamp on. I ran through all the VAG block tests via ALLDATA and the block values and self tests all passed. If anybody needs I can get the block values I have obtained. I check the catalyti...
November 29, 2006