I have a 94 Buick Century with a sfi 3100. It seems to run o.k. but there is a recurring problem where all the warning lights will come on, the dash lights get really bright and the headlights get really bright. When it happens the motor runs really funny. I was thinking maybe the battery is screwed and pumping out too much juice? Possibly causing the ecm to do screwy things to the fuel system and transmission? as well as causing the lights to get so bright? I havent pulled any codes from it yet, I will do so probably on wed. see if it has anything stored. Besides the codes does anyone have any input as to possible problems and potential solutions?