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P0456 Diagnostic Trouble Code Discussion for March 2013

EVAP System Small Leak


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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2001 Hyundai Elantra GT 2.0L MIL Lamp on, monitors not ready VIN: KMHDN55D51
P0456: EVAP System Very Small Leak Detected. ... emissions inspection. Reading codes in OBD II generic using MODIS results in a "U0D00", but reading under 'vehicle specific' yields the P0133, P0456, and P1166. After erasing codes, U0D00 resets immediately, and under vehicle specific, the P0133 s...
March 27, 2013
2001 Hyundai Elantra GT 2.0L MIL Lamp on, monitors not ready VIN: KMHDN55D51
P0456: EVAP System Very Small Leak Detected. ... emissions inspection. Reading codes in OBD II generic using MODIS results in a "U0D00", but reading under 'vehicle specific' yields the P0133, P0456, and P1166. After erasing codes, U0D00 resets immediately, and under vehicle specific, the P0133 s...
March 27, 2013