What should coil and ballast resistor voltage be?
Go back and re read his post #11 and see if that helps.
I'm not help. I am so simple minded I still use points! That way I can never blame any issue on the ECU!
Voltage drop at firewall connector? I am so old and so not a purist, I have drilled thru the firewall connector and ran said wire directly in/out!
Some of this almost reminds me of the "bad ballast " thing. That Mopar fires up and runs with Ign.2 but soon as you release the key, it dies! It got full current in "start" and thus fires up and runs, but nothing afterwards in "run" to keep running.
Yes I am little help with electronics.