i have a high idle issue, someitmes when i am driving easy, not going fast, in traffic on hot days, it will idle at 1500 rpm or more, and it wont let hte revs go back down fast, when i let off to shift, it lingers a bit. the temp gauge says its not hot though, it says only slightly abov3e the first warm mark on the gauge. i am stumped. i add water to radiator, it goes away. but a week later it comes back. i dunno where i am losing water too, i know they are notorious for head gaskets. is it that, or my water pump. it runs great, but it gets hot in traffic very easily.i know i have to do my timing belt eventually too. thinking of replacing my water pump at that time. also, i dunno if a sti radiator would help for rally cross in hot weather, or a legacy h6 radiator.
