I think the question is whether the change in timing is causing the idle to wander OR vice versa. It sort of looks like the shift in timing comes first, more or less.
Imagine what would happen if everyone in the country did a tune up over Memorial Day... next week, nation-wide gas consumption would drop 10%, and so would the price of gas ... makes you think, doesn't it?
Good thing we're all getting into our tricked out turnip trucks and driving out to the mall instead. Next thing you know you'll want us to stop dumping our used oil down the storm sewer! :lol:
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