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P0456 Diagnostic Trouble Code Discussion for April 2009

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2003 Volvo S60 2.4T 2.4L MIL on P0456 VIN: YV1RS58D43
P0456: Evap system very small leak detected. ... on this one. I have this 2003 S60 in for a check engine light on. The code is a P0456, indicating a very small evap leak. The customer had come in a month ago with the code stored and we found the gas cap seal badly cracked. The customer obtained a cap fro...
April 08, 2009
2004 Chrysler Pacifica 3.5L MIL Lamp on VIN: 2C8GM68444
P0456: EVAP System Small Leak (0.020") Detected. ... (evap failure)& p0456 (evap leak detected). I smoked the system and found nothing. I also tested the purge valve manually(all showing ok). the only thing that could be the cause at this point is the NVLd assembly. I ord...
April 09, 2009
2002 Mini Cooper 1.6L MIL Lamp on VIN: WMWRC334X2
P0456: Evap system leak small. When I worked at the dealership, we saw this issue a few times, and BMW replaced the fuel tank, all hoses, pump and complete system under warranty. Now at an independent, and I can find no TSB's applicable to the issue. Any ideas, anyone?
April 16, 2009