No Spark At Coil
1994 F250 5.8L Truck died while driving at 25 - 30 mph. No spark coming out of coil. I have 12v to both + and - primary wires while cranking. The manual says that the - primary should be rapidly pulsing during cranking. If its pulsing its so fast that I can't see the pulse on my test light. I have replaced the coil the stator/pickup, ICM, and even the EEC-IV(eng computer) still no spark at coil secondary. Any thoughts appreciated.