Sorry to revive an old thread, but an idea occurs to me...

I already have a thermostat that controls my electrical radiator fan... What if I wired it up such that when the engine gets warmed up to operating temps, instead of just switching on the fan relay, it also swithes on a second relay that is wired to bypass the B+ leg of the IAC connector? This way the IAC will be there to help assist with cold starts, but once the engine is warm it will turn it off, giving better throttle response and no RPM hold.

On my Sportage the RPM hold is incredibly annoying and drives me crazy when the AC is on.