I recently was driving my 91 honda hatch and when I got to where I was going it knocked and shut off and wouldn't start or pop start I had it towed to my house and upon my search for the problem I found there was no spark coming from the distributor but while I was taking it apart I was disconecting the positive and negative. Wires that where connected to this grrey box so it has power but isn't giving me nothing what's the deal with this