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P0476 Diagnostic Trouble Code Discussion for February 2009

Exhaust Backpressure Regulator Malfunction (Self Test)

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Trouble Ticket Help Requests for DTC P0476
Help Request Posted
2004 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWVD63B94
P0476: loose fuel filler cap/pressure control valve. ... on AND another warning lamp (icon of car with fuel filler cap away from side of car). I've never seen this warning lamp on a VW or Audi before. Owners manual says loose or defective fuel cap. Cap seems to seal ok. When I scan engine I only get the O2 senso...
February 19, 2009