Idle speed motor and/or ICU may be on way out... Mine behaved same way. Automatic system became steadily worse. Sometimes would stick wide open (idle @ 2500 RPM). Sometimes would stick fully closed (barely idling at compensating manual circuit setting). That's why I removed from car altogether. Suggest you familiarize manual idle circuit now so if yours does same will be able to adjust on the road. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, billsfanmd@xxxx wrote: > With the help of Martin and Rich Acuti this time I may have solved my idle > problem. My idle was sluggish, my car surged up and down when cold and I had RPM