× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0456 Diagnostic Trouble Code Discussion for August 2007

EVAP System Small Leak

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2003 Mercedes-Benz C230 Kompressor 1.8L MIL Lamp on VIN: WDBRN4OJ73
P0456: evaporation system leak detected very small leak. ... engine light on all the time. check & found code P0456 as described. Check gas cap & found OK.Check generate valve,pipes & connection at engine compartment & they look OK. The problem is as the code explained very small leak. Since we didn'...
August 20, 2007
2004 Hyundai Santa Fe 2.4L MIL Lamp on VIN: KM8SB12BX4
P0456: EVAP System Very Small Leak Detected. Hello all This is the second time around for us on this vehicle. This vehickle sets a PO456 after a long run. Smoke tested the system and found numerous small wisps at every hose connection. Sealed all connections using grease and screw type clamps. Retesed w...
August 22, 2007