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P0456 Diagnostic Trouble Code Discussion for March 2011

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2005 Toyota 4Runner SR5 4.0L Excessive Emissions VIN: JTEBU14R85
P0456: EVAP System Very Small Leak Detected. Smoke tested evap system. Found vent valve leaking a little. replaced canister assembly. After replacing canister I still have a small leak coming from vent valve is this normal? If you block vent it has no leaks in the system. Code still sets after a day of d...
March 29, 2011