PLEASE HELP IM IN DIRE STRAIGHTSNo spark MSD but test fine what am i missing!

the problem is the MSD box needs at least 2 volts all the time and our Mopar OEM wiring cuts or often deduces the 12 volts except to the ignition side when cranking. So if you tie into the cranking circuit as soon as you let the key back when it barks...it dies.

to prove this run a hot wire directly from from the battery to the MSB box (red / switched wire) and have someone yank it off once it starts and continues to run. When the 12volt power is cut, the engine will die.

I usually grab two separate constant 12 volt circuits off the ballast resister, one circuit that has the 12 volts when the key is "on" and a separate 12 volt circuit that has power while cranking the engine.

test light will not cut it unless you can notice the light getting dimmer when you are cranking the starter. On mine, the voltage would drop just enough to no longer give enough signal (12 volts) to the fire the MSD box