I've been fighting with an 84 BB512 with a no spark problem. I have sent the digiplex out to be repaired once, and then it was sent out again to make sure it was working....The box is fine. The ignition coil is brand new(came with the new ignition box) It was also sent back for checking...it is fine. The pick-up on the side of the distributor was swapped out with a pick-up from another BB512...it works just fine. I have 1.5Ac volts from the magnetic pick-up on cranking...this is within spec. I have 1.5AC volts at the ignition box at pin 6...this is fine. I have power coming in(yellow wire) and stays at a constant 12volts while cranking and when the key is in the run position. This is good. I have good ground for the box. checked with meter. I have perfect continuity for the ignition coil wire. Everything i have checked tells me this car should be running. Today just to eliminate the possiablity of bad wireing I made my own harness independent of the exsisting one in the car. I ran fresh brand new wires from the terminals on the ignition box directly to the controled component thus eliminating any chance of a harness problem. Still nothing. The car turns over very well (new batt) The ignition rotor is turning (belts are not broken) it has plenty of fuel. The ignition wires are brand new. But I'm getting zero response from the ignition coil itself. But the coil tests fine. Does anybody have any idea what so ever as to what could be wrong with this car? It there anything inside the BB512i distributor that could be causing this problem(the distributor ground is fine). Guys I'm at a total loss with this car. I have never seen anything like this,and I have come accross some wacky stuff. But this car has me stumped. Any help would be appreciated!!