RonD, sorry for not getting back earlier. I read your last post and have been behind on computer stuff lately so haven't replied. Using the wiring you mentioned, does this eliminate the ignition module? I don't think it does, just trying to confirm. Thanks
No it doesn't, it just gives 12v to the coil, the coil still needs to be "told' when to spark.
Just a quick note on spark systems.
Gasoline vehicle ignition systems have worked the same way since........well forever.
An ignition coil is a voltage amplifier, it takes low volts/high amps and converts it to high volts/low amps.
To get a coil to release a spark you cut power to it, then repower it and cut power again to get another spark, ect.....................
Because of the "positive" wiring in vehicles the Ground is easier to use to cut power than cutting the 12v side.
For 70 years "points" were used to do this, the points are connected to the "-" on the coil and a Ground(distributor housing).
The coil is given 12volts all the time(key on)
When points are touching coil powers up, when points are separated power is cut and coil sparks.
There are lobes on distributor shaft to open and close the points creating the sparks and rotor on the top to send the sparks to individual cylinders/spark plugs.
The downside of mechanical points is that they wear out and need to be cleaned/filed and reset, and then replaced when they wear down enough.
"Pointless" ignition systems still used a distributor and rotor but used a "sensor" to detect the "lobes" and "transistors" as the on/off switch for the "-" on the coil.
Most of these were a big improvement because they didn't need the attention mechanical points did.
The coil itself never changed during this conversion, and it has one weakness, heat.
A coil is just what it's name says............a coil of wire, well actually 2 coils of wire

Now if you have ever looked at an electric heater or inside an electric toaster you will see a "coil" of wire, when you apply voltage to that coil of wire it starts to heat up, and that's what happens inside an ignition coil.
The more voltage you apply the more it heats up, so with less voltage it heats up less.
This is why a "ballast resistor" or "resistor wire"(GM) is used to lower the voltage at the "+" side of the coil, coil can still spark well enough but will run 50% cooler.