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Small evap leak p0442 and p0456

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Old 11-15-2015, 11:33 AM   #1
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Default Small evap leak p0442 and p0456

Hi I have these 2 codes and iam not sure what to do. I have emission coming up. My car is a 08 3.6. Also during cold starts it's has a rough idle for couple seconds. I already replaced gas cap. Should I replace the purge valve next to the intake manifold? The charcoal canister?
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