Thread: P0446 mil
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Old 04-11-2019, 11:40 AM   #4
95 S_Trucker
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Re: P0446 mil

P0446 is a vent malfunction. It’s not a leak code. You would have a P0440 or a P0442 if there was a leak somewhere.

It’s definitely not the fuel cap.


Also, the evap monitor is the toughest one to set, it may take 50+ miles of mixed driving for it to set.
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