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P0456 Diagnostic Trouble Code Discussion for June 2018

EVAP System Small Leak


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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
1996 Jaguar XJ6 4.0L Excessive Emissions, Cuts out, Stall VIN: SAJHX174XT
P0456: fuel tank pressure sensor. vehicle running extremely rich.visible in exhaust.fuel pressure is ok.injectors works ok.all the sensors are within parameter.we have good crank signal.scanner tends to lose communication when the car is running.we have communication when the car is not ru...
June 02, 2018
2013 Porsche Boxster 2.7L MIL Lamp on VIN: WP0CA2A8XD
P0456: tank system very fine leak. ... on how to attack the two codes. first p1672, does anyone know where the fan is located and how to test it?? secondly p0456, id like to smoke the system but not sure where the purge valve is or how to access it. ...
June 07, 2018