Quagmire, thank you for the look and suggestions.
It will be a couple of days before I can get at it again.
One question is this statment.
"The brown signal grounds should be tied into the sensor ground coming out of the MS3."
Is the sensor wire the (brown also) Wire coming out of th e MS3? Pin number 36?
I will change settings and test with light as you have offered.
As for the power. No the coils were not powered up when initially booted. I do however have a couple of additional ones I could swap in to try if all else has failed.
I am using the battery for power. Have charged it regularly to be sure. Disconnected of course...
All the power is coming directly from a trunk mounted jy sourced fuse and relay block. It is being fed with an 80 amp continuous duty relay with an equivalent breaker. Relay is triggered by a relay that is on for start and run but does not power up for accessories.
Separate fuses for all items such as MS, coils, injectors and fuel pump. But all are basically fed from the same buss bar.
Good suggestion on the headlight idea. Will use it.
Also a tip non MS related. Years ago I had a problem with the battery going dead on my Mustang. Small low end draw would kill it. (Old timer) said to disconnect positive side cable and wire a light bulb in between. Yup sure enough it lit up. Leave on and then start disconnecting wires, plugs, bulbs, etc... until it goes off. Now you have at least narrowed down source of short. Simple but effective.
Thanks again guys.
Looking towards positive updates coming soon.