Quote:

ign. ballast resistor bypass runs off the starter relay.
ign. ballast resitor "run" feeds off the ign. switch.




Good point.

I think I determined that though. From looking at the 71 FSM it looks like during start power is being fed from the batt post on the relay to the car whic in turn is sent through 2 wires...one is the yellow wire to the I terminal on the relay and the other is to the brown wire to the ballast resistor which inturn goes to the + side of the terminal. I test lighted both of these locations and they both lit during start.

During run I could get a light from the + side of te coil too, but it looked alot less bright. Could this indicate the stepped down voltage needed during run? I test lighted the negative side, but did not get the testor to light.

How can you test the coil to see if it is okay?


'73 GK6 Challenger Rallye - 340 4-Speed