Intermittent stall

We had a truck brought into our shop yesterday with an intermittent dying out problem. Scanned vehicle and found no codes. I brought the vehicle in and immediately hooked up my pico. I current ramped all 8 coils, fuel pump,back probed a fuel injector for sync and hooked into the crank sensor at the computer. Vehicle dies out. The crank sensor has 1 long tooth and one long missing tooth for sync. So when the tone ring passes one it should be 5 volts and when it passes the other it should be ground, and they should alternate evenly. I found that when it should be 5 volts it goes ground for three consecutive times in a row causing the vehicle to lose spark and die out. I verified the wiring integrity and replaced the crank sensor.

P.S. If you look at the waveform on pico, the event happens on page two. within the first ten seconds.