P0446
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Location: WI
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Ok I have been working on 2000 Lexus RX 300, I have two codes P0440 and P0446. I know all bout the common gas cap issue(been replaced), no damaged vacuum lines, I'm leading to either the Pressure Switching Valve or the Charcoal Canister. However; will these codes cause a hard start when engine is cold(mainly in the morning, from Wis.), as well as having a really ****ty idle. All help and suggestions are highly appreciated and thanks KG
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