Hello all, my wife has a 2005 Chrysler Crossfire. Was running fine and started run a little rough. Scanned the codes, getting P0300. So, I have replaced the spark plugs, plug wires, coil packs and the injectors. Still getting P0300 along with P0303, P0304, P0305 and P0306.I tried to erase the codes, but they still come up. Anyone know what else it could be. Thanks Steve