switched 12v source for my Holley Sniper

Cuda Al said

This question comes up time and time again, short of taking an ignition switch and ringing it out I have always assumed that the IGN2 had 12v in run AND start. How else would the coil get power during cranking? My Mopar ignition module is powered off the blue wire (IGN2) and I'm pretty sure it needs power during cranking.


Alan

Click to expand...

No it works exactly as I explained. Please go re-read post 4

The IGN1 is the "run" source and is hot ONLY in run
The IGN2 works just like the "start" contact except it is a separate switch contact, and is hot ONLY in start

The IGN1 originally supplied power through the firewall to the VR, alternator field, choke if used, smog devices if used, AND THE IGNITION SYSTEM

IGN2 comes "on" when key is twisted to start and feeds power direct to the coil during that time.