Last September I was driving to work and the truck shut off while doing 40 mph on a rural hwy. Confirmed myself and with a mechanic that coil is good and getting 12 v, and even installed a new one. Fuel pump and fuel injectors are working correctly and pulsing. Crankshaft sensor is reading rpms and showing on tach on cluster. Distributor rotor is spinning and cap is new. no codes on obd scanner. It seems that something is preventing the coil from getting ground signal to discharge to distributor. I am at a loss of what to troubleshoot next, Please help.

 

Verify continuity on the ground wire. That's controlled by the PCM, if the wire is good, the PCM is bad.....

 

ground wire from the coil? if so continuity to chassis ground or to pcm? Apologies if the question seems ignorant. I'm handy with mechanical troubleshooting but electronic troubleshooting is still needing improvement on my part.

 

I would say between the coil connector and PCM connector.

 

This.

PCM controls the coil by switching the ground. Coil has constant power, so long as the PCM sees the engine turning.