Ignition switch/starter relay/ballast wiring help- Painless Kit - FIXED
OK so have you actually checked coil voltage to make certain you do have it right?
Cranking, coil+ should be nearly exactly same as battery voltage when cranking
Running, coil+ should be somewhat lower. With battery charging at say, 14V, coil + should run maybe 10-11V. If you are checking with key "in run" and engine stopped, and battery at 12--12.5, coil+ should be maybe, 6-9V