OBD code P0456 - Kia Forum
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#1 (permalink) Old 12-27-2007, 07:11 PM
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Default OBD code P0456

Hi,
my girlfriend was driving our 2001 Kia rio the other day and the check engine light came on and has been on for over a day. We went into autozone and they did a diagnostic and came up with the code P0456. It says
EVAP small leak detected.
They said it could be a problem with the fuel cap..I checked it but it seemed okay (I dont know how I would know if it was not though). Does anyone have an idea on how to fix this problem? How to check if the gas cap is the problem?
and how to check if it is any of the other problems it says it could be...
1) Evap canister broke, hose cracked or not connected
2) Purge or vent solenoid defective
3) vacuum leak at engine

Any help would be greatly appreciated
Thanks
R
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