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P0456 Diagnostic Trouble Code Discussion for April 2016

EVAP System Small Leak


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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2012 Mazda CX-9 Grand Touring 3.7L MIL Lamp on VIN: JM3TB3DV2C
P0456: evap small leak. ... been a problem it will set an intermitant p0456 the mil will come on and go off over a week or two time. She came from the dealer because all they ever do is clear it and tell her cant find the problem. The only tsb I can find is for the gas cap tightening...
April 20, 2016