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P1456 Diagnostic Trouble Code Discussion for September 2009

EVAP System Very Small Leak Detected

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Trouble Ticket Help Requests for DTC P1456
Help Request Posted
2003 Nissan Pathfinder LE 3.5L MIL Lamp on VIN: JN8DR09Y3W
P1456: EVAP System Very Small Leak (0.020") Detected. ... Pathfinder that is setting code P1456 (small leak detected in EVAP system) intermittently. I have tested for leaks in system. None found. When I first got to it, the pressure sensor was not moving up or down with pressure very much. So I replaced it. Now t...
September 22, 2009