I just had a thought,
Hook up a temporary red light to the input side of the ballast which also feeds the control module. Place the light inside the car so it is clearly visible when the car dies. if the light goes out your part of the way there. If not go to the control module and check it's 12 V signal, then onto the coil. IF all of the above maintain power your remaining components are the coil itself or the signal between the distributor pickup coil and module or the module and the negative side of the coil. Keep us posted