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P0456 Diagnostic Trouble Code Discussion for November 2010

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2002 Isuzu Trooper Limited 3.5L MIL Lamp on VIN: JACDJ58X92
P0456: EVAP System Very Small Leak Detected. Hello, hoping someone can shed some light on any common issues with evap systems on these trucks. I've smoke tested and found no leaks and tested fuel filler cap which also passed. Leaning toward vent valve or purge valve not sealing properly but looking to se...
November 04, 2010
2004 Mitsubishi Outlander LS 2.4L MIL Lamp on VIN: JA4LZ31F44
P0456: EVAP Leak Monitor Very Small Leak Detected. This vehicle keeps setting p0456 evap very small leak. I have smoked the system(multiple times), tested all solenoids, replaced fuel cap and vent valve. Codes keeps coming back. Any ideas?
November 15, 2010