I have a 2005 Magnum with a 3.5L, the car runs great then for no reason at all the throttle warning light starts flashing and the Esp/Bas light comes on and the engine starts running rough. I turn the car off and restart and they go away for a short time, then come back on. Every time I restart the car the light goes out. If I drive with the lights on for any time the check engine light comes on. My mechanic say that there are no codes and he can't figure it out. Any help would be greatly appreciated.