I didn't actually remove the throttle body, just all the air-cleaner stuff ahead of it. That's all put back together nice and snug, and all the hoses and tubes are tight. As this is drive-by-wire, with no idle air control valve, I'm thinking that, for some reason, the throttle is opening too far when cold. It could be a temperature sensor, but I can't imagine any scenerio where a very cold engine was supposed to idle at 1800RPM. I dread going to the dealer. They'll undoubtedly want to replace things like the throttle control or the ECM. I re-disconnected the battery again overnight to see it something might re-set, but no go.
Monday, November 28th, 2011 AT 5:22 PM