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P1440 Diagnostic Trouble Code Discussion for September 2006

EVAP Canister System Small Leak (0.040) Detected

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Trouble Ticket Help Requests for DTC P1440
Help Request Posted
1998 Nissan Pathfinder SE 3.3L MIL Lamp on VIN: JN8ARO5Y3W
P1440: EVAP Canister System Small Leak (0.040) Detected. ... Nissan p1440 evap code. Thought it was a simple intermitent vent control valve leak but no luck. Code returns every other tank of fuel or so & smoke test at service port shows no leaks. I suspect an ittermitent leak at canister but not sure how to prov...
September 26, 2006