[tblake]

The car's computer or ECM stores parameters that keeps the car running smoothly. When the battery was disconnected, the codes in the ECM were lost. Have I confused you? I would suggest driving the car how it is for a while to allow the ECM to "relearn" is parameters. Maybe take it on a long 45 mile journey. I remember reading somewhere that my old '90 lumina needed to be driven for (I believe it said) 45 miles should the battery ever be disconnected. Also you might want to try and idle relearn procedure, which can be found all over the net. I dont have a link right off the top of my head. Good luck.