The idle sounds like either a vacuum leak or a problem with the EACV and/or FITV. I'd lean towards a leak because of how high the idle is going.

Clicking when turning sounds like CV joint(s).

Since it's an EX and has a tachometer, what rpms is it running at when you think it should be upshifting? The auto on that car is a 4speed, you should be able to count the shifts to know what gear it's in. If you are cruising, just maintaining speed, at 80 or 90, it should be in top gear, 4th (assuming the gear selector is in D4).