Ignition switch wires identification
You should have started your own thread, but "anyway." The "usual suspects are thus:
Most Mopars have TWO wires involved with ignition "run" and "start." IGN1 "run" goes from the key, through the bulkhead, into the engine bay, and supplies several loads, depending on year. Ignition power to the ballast resistor, alternator field, VR, choke if used, and smog doo dads
THAT POWER, the "run" power, NORMALLY GOES DEAD during cranking!!!!
IGN2 is the ballast resistor bypass circuit. It goes from a dedicated contact on the ignition switch, through the bulkhead, to the coil+ side of the ballast, and is ONLY hot during cranking. It supplies hot battery starting power direct to the coil and "backwards" through the ballast to the ignition box during cranking
"It may be" that your old ignition switch did not do that, and that IGN1 (your choke wire) got power during start, and that the new switch does NOT
ALSO IN THE MIX is that at some point, Ma went to what "I" call the "jeep" style starter relay which had one more contact and one more terminal. I believe it may have some interaction with that circuit in later years. Not sure when they made that change (top left terminal in diagram)
You may need to "find" your ballast bypass/ IGN2 wire and connect it to the small red on your MSD, along with the original "run" power wire
You should have started your own thread, but "anyway." The "usual suspects are thus:
Most Mopars have TWO wires involved with ignition "run" and "start." IGN1 "run" goes from the key, through the bulkhead, into the engine bay, and supplies several loads, depending on year. Ignition power to the ballast resistor, alternator field, VR, choke if used, and smog doo dads
THAT POWER, the "run" power, NORMALLY GOES DEAD during cranking!!!!
IGN2 is the ballast resistor bypass circuit. It goes from a dedicated contact on the ignition switch, through the bulkhead, to the coil+ side of the ballast, and is ONLY hot during cranking. It supplies hot battery starting power direct to the coil and "backwards" through the ballast to the ignition box during cranking
"It may be" that your old ignition switch did not do that, and that IGN1 (your choke wire) got power during start, and that the new switch does NOT
ALSO IN THE MIX is that at some point, Ma went to what "I" call the "jeep" style starter relay which had one more contact and one more terminal. I believe it may have some interaction with that circuit in later years. Not sure when they made that change (top left terminal in diagram)
You may need to "find" your ballast bypass/ IGN2 wire and connect it to the small red on your MSD, along with the original "run" power wire
