Called the shop this morning and got a list of codes. Engine: P2065 Transmission: P2600, P2602, P2404, P240C, P2313, P2001. Any help would be appreciated. I told the shop to replace the battery today as other parts can't be here until Tuesday. It was interesting that the problem would appear after the car had sat for several hours...leading me to wonder if it was simply a voltage problem that would correct itself once the battery was being charged while driving....?