Thanks for your time, tolusina.
I'll be finding an led test light as a first step.
Recap on parts:
coil/other module that goes with it. tested as per coil test page, shows good..both old and new.
crank position sensor(under the front side motor mount).
electrical end of key switch.
Swapped with used parts:
Only time it sparked was with B ecu and even then spark wasn't hot and blue.
After swapping ecu's now no spark happens at all.
Code reader shows no codes from trying to crank engine over.
Originally showed failed crank position sensor..not any more, since part replaced.
I did verify ground from ecu frame to battery with dvom.
Think I'll go back and verify continuity of ALL the crank position sensor wires and distributor wires to the ecu, then into word at a time verification of function as you specified.