"You are correct grip, 12v on 1F of the pulse module SHOULD make the starter engage :"

So, power to the starter doesn't work. The starter is dumb, if electricity directly to the solenoid doesn't go vrrm vrrm, it's the starter. But make sure you are getting it to the starter. The wires could be rusted to mush, the connectors could be loose or crusty.

Edit "make sure you are getting electricity through the starter." You need a good ground and hot.