MSD 6 Hookup

[WILL]

Originally Posted by 84_CJ7

I guess this is something I never thought of before so correct me if I'm wrong.

The ignition post (I) on the solenoid gets 12v when the keyed switch is in the run position AND the crank position?

AFTER the engine is running the ignition post (I) has no more voltage?

Right or wrong?

I have been experiencing a sight delayed cranking (firing up after I released the key - not during) - and now I wonder if the solenoid has some issues? Shame on me that I never thought about it.

That is right. When cranking the starter draws the battery voltage down a bit. To help the engine fire, sometimes the coil is powered from this post to provide the full (though reduced still) battery voltage to the ignition rather than through the resistor circuit which would be even lower than normal while cranking.

[TeamRush]

The 'I' terminal on the starter relay is only 'Hot' when the starter is cranking.
When the starter stops, the post will no longer supply voltage to the ignition system...

And then the key switch 'Run' position takes over supplying power to the ignition system.

The 'I' terminal will show voltage since it's connected directly to the coil,
But it will be reduced voltage from the coil using voltage and the ignition resistor in line.

Some people power up the module from this point,
But I was under the impression you were going to take the old coil wire out...

If you leave the old coil wire in place, you can use it to power up the module.
Reduced voltage from resistor won't effect the module,
About any current will power it up.