Small evap leak p0442 and p0456
#1
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?