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This code came up on check engine light
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OBDII Code P0440 means Evaporative System Malfunction, Large Leak. To learn more information visit this article in RepairPal; http://repairpal.com/OBD-II-Code-P0440
thanks Fernando for taking the time to answer my question - Toyota dealer replaced a rusted gas filler neck tube and new fuel cap - engine malfunction light off