I have fire in the front cylinder but nothing on the back cylinder of my 2001 V Star 650. I old coil was shorted. I have replaced it with a new one and still nothing. The coil starts to get hot after a while with the ignition on. The front one remains cool. I've swapped out the coils. Both coils will fire on the front cylinder. From what I see, there is only one igniter. That tested good. Could something be shorted out in the ECU causing the problem? Thanks.