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What is diagnostic code P0456?

 

Customer Question

What is diagnostic code P0456?

 

Optional Information:
Year: 2004
Make: Hyundai
Model: XG350

Submitted: 1165 days and 12 hours ago.
Category: Car
Value: $11.70
Status: CLOSED

Accepted Answer

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Expert:  brownjeff replied 1165 days and 12 hours ago.

That code is for a vapor leak in the fuel system. It can be cause by a loose or not dealing gas cap. Also several rubber lines going to the fuel tank so make sure none of these have a crack in them. It is a vapor leak so anything that will allow the pressure out of the tank will set off the code. It will not effect the way the car runs.

Expert TypeASE Certified Technician
Category: Car
Pos. Feedback: 100.0 %
Accepts: 1168
Answered: 2/2/2010

Experience: 17 years experience, ASE certified, dealership certified, Service Manager for 15 years,

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