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2007 DTS Code


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Hey Guys,

I visited the local Auto Zone and they were kind enough to read the DIC Code displayed. Code is as follows P o 4 4 9, Evaporative Emission, Vent Valve, Cellonoid Malfunction.

My earlier post explained that a mechanic read the code, reset it, but it did return after about a week. I checked the gas cap, as was suggested, and it was secure. I"m hoping this is something I can replace without taking the car to a dealer. Any help from The Forum will be greatly appreciated.

Thank you.

Steve M.

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