The Idle in my car has started to really get wierd. It use to idle at about 700 RPM, for some reason after the rain it idled cold at about 1000 and warm at over 1500. I dialed the Idle Air Ajuster all the way in and that took the warm idle down to about 1100 and cold to about 600. Any ideas what could be wrong?
sorry i mean when its idling when warm - its supposed to be open when cold to idle the engine up. however if its stuck open, it'll idle high when warm.
try unplugging the AAC valve also and see if the idle drops much (when warm).
also check for vacuum leaks.