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 Post subject: Code P1447
PostPosted: Sun Apr 01, 2018 4:01 pm 
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Joined: Wed May 21, 2008 9:38 am
Posts: 153
CEL came on in our e90. My generic code reader pulled “P1447 - diagnostic module tank leakage too high during solenoid switching test”

Is this a generic fault description and is there a most common cause? On line I’m seeing several potential causes from the old gas cap issue to the DTML pump. Would anyone have any insight?

Thanks very much, Bill


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