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Thanks, it's an '01. Thought I had this fixed with driving habits, until it came on again about a week ago (while best behavior in place). I'm using the Durametric scanner, and don't see a reading for fuel trim -- or anything particularly relevant in this area.
Thanks for the suggestion on the canister purge valve... I was originally thinking it may be the fuel line vent valve... which I need to research more... they seem the same, but different location across different years? I suppose it could be a general evap leak, but that sounds difficult/expensive to diagnose...
Thanks for any more advice.
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