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      03-15-2011, 10:47 AM   #7
OldenburgerM3
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Drives: 2011 Jet Black M3 Coupe
Join Date: Feb 2011
Location: TX

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before you go all out and think idle valves, it's more likely (and simpler) to assume vapor lock. your description of a hot engine after long drive and short stop to pee leads me to think it's clearing fuel vapor from the lines and settles after a minute or so of idling.

Last edited by OldenburgerM3; 03-15-2011 at 04:37 PM.