I travelled to a neighboring shop on Tuesday. I'm the old guy, so I'm expected to be able to fix anything that still has a distributor.
I was called to repair an old F350 with a 460 V-8 NO START. However, OBDII.
The young technician had gotten so wrapped up in correct waveforms he forgot to try all the easy things. I had him plug in the spare dist. and the thing started to come back to life.
So...the question arose....the original dist. had a perfectly good looking square wave waveform...
WHY wouldn't it start?
The answer is the sensor can no longer pull the waveform down to zero volts. Pattern looks good but it is "floating" (elevated ground).
Ignition module and ECM never recognize a "trigger".
I bring this up here because these are the kinds of things you may experience, Nikki.
BTW, since day one Ford Electronic Ignition systems have had a "diagnostic" built into them. Spark should be visible ONCE at the coil wire during no start when you turn key on and off with cranking or without.
This proves coil and connections are OK. That really helps.