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New Member - Error Code Help P;ease

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Hello All

Sorry to ask for help on the first post, but......My 02 IS 300 has an error code of PO 440 "Evaporation Emission control system Malfunction". It has 70k miles, now radiator, timing belt, water pump, it runs good. My mechanic friend thinks it has something to do with the blue "PCV" valve which is close to the firewall. Also, my mileage indicator is reading abnormally high MPG since the engine light has been on. I have replaced 1 02 sensor as well.

Any ideas? Should I brignit to the dealer? Thanks in advance.


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