I will be driving and my bonneville will suddenly start radomly acting like it will stall...sometimes it does. Case scenerio...driving 55mph and suddenly tach and other guages bottom out. Battery light flashes. It may happen one, two, three times and its over....sometimes it stalls. Pull over and starts right back up. Will run fine until the next episode. Battery is new and cables clean. I pulled codes and nothing except ABS and Cat codes. Someone has suggested checking power relay or ignition relays. All the grounds seem clean and snug... Any suggestions? Thanks in advance...