I figured I'd post this here, since it's kind of related to this thread. On my 99 Accord with 2.3L and 5 speed.
I've run into something odd the last week or so. I'll start the car up, and roll out of the driveway, and go somewhere (this is the first start of the day), and it'll be idling at around 1200 rpm. Then after it's shut off (can be 10 minutes or an hour) I'll restart the car, and it idles normally (750 rpms). Any ideas? I've been driving the Toyota want to be lately, so I haven't really look into the issue.

 

Loosing any coolant ?

 

Nope. And it only does it on the first start up of the day. Like I said it just started doing this in the last week or 2.