1973 Dodge Charger SE Electronic Ignition to Alternator Wire

[irish_in_ny]

Hello everyone. I bought a new electronic ignition and a new wire plug-in that runs from the alternator to the electronic ignition. The new wire has 5 prongs at the plug in point but the EI only has 4. Will it work that way or should I bring the plug-in wire back to the shop and see if a 4 prong plug is available? The part (wire) was $80 new and seems to be hard to come by. Any help is greatly appreciated. As far as I understand, the 5 prong EI was for the late '70s-'80s cars.

[Nacho-RT74]

simply the 5th wire, arriving to the unexistant pin location is not used on 4 pins ign module.

4 pins were lates production. they are matched to be used with single ballast. 5 pins modules are matched to be used with double ballast resistor.


BUT you can use dual ballast resistor on with 4 pins modules without problem... the 5th pin arrives to the secondary resistance but won't be used on your brand new 4 pins. Not reverse though ( at least to work correctly ). 4 pins modules were redesigned to feed what the secondary resistor feeds from inside opposite from 5 pins who takes the power from outside

[red79]

like nacho said, just plug it in and it will work fine. the 4-pin modules were designed to work in both 4- pin and 5-pin systems.