Still having problems with high idle.
I've been keeping a close eye on the temp guage but have not noticed anything unusual.
Warms up with no problems, even in cold weather, and the needle stays pinned at just below half-point of temp guage once engine has warmed up.

I really think t-stat is fine.
Is there anything else that could be causing this? Possibly a bad sensor of some sort?
Maybe if I reset EFI computer or something?
I'm going to check for any engine error codes today, even though 'Check Engine' light is not on.

Any help would be appreciated.