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P0456 Diagnostic Trouble Code Discussion for February 2007

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2002 Dodge Intrepid SE 2.7L MIL Lamp on VIN: 2B3HD46R52
P0456: EVAP System Small Leak Detected. Vehicle was smogged for customer 1 week ago.Passed no problem.Customer brings car back with MIL lamp on saying it should never have passed and we rigged it.No obvious vaccum leaks,replaced gas cap.Smog guy is closed so I can't get the readings today.I would ve...
February 03, 2007
2001 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, MIL Lamp on VIN: 1J4GX48S21
P0456: EVAP System Small Leak (0.020") Detected. this vehicle has been in a number of times with the code.po456 i have smoked tested this vehicle a number of times. every time i cannot find a leak but i will run the leak detection pump test with the drb3 and it will set a po456 small leak. i have replaced th...
February 06, 2007