So I believe I've found a problem. I believe that the coil positive is supposed to come closer to battery voltage when key is in run. Instead it goes from near 7 volts with key on and then to near .5 volts in run. Definitely doesn't seam right...
I do not understand what you said.
With key in "run" position and engine stopped, coil + should read anywhere from 6 to 10V This is because the 12V from the battery is dropping down through the ballast to the coil, and the module should be causing the coil to draw current
The coil neg should be anywhere from say, 1/2V to 1 1/2 V which means it is drawing current and close to ground, via the module.
MODULE MUST BE GROUNDED
In "start" the coil + should be very close to "same as battery." this means that if the battery is "say" 11V while cranking, then the coil should be 10.5 or more to 11V while cranking
I'm with everyone above. DISconnect everything from the coil except the two wires into one terminal that should be there with the eyelet on the + side
and the one (black?) on the neg side.
If you have a tach DIS connect it for now. DIS connect the capacitor for now which is for radio supression mostly