moparnewbie
New Member
Hi guys, my names Mason and I work at a classic car restoration shop. Had a customer buy a 72 charger with a 400 in it. It had the orange 4 pin ECU and factory distributor and some seriously tampered with factory wires.
So I pulled the harness, chopped out all the factory ignition wires because im converting it to a ready to run drop in distributor and coil.
Now the questions come as I do not understand why the alternator wireing connects to a ballast resistor on the firewall. I took off the white wire off because it went to the ECU so the only wires attached to it are the dark blue wire with the black jumper to the terminal above it, and the brown wire(which is 2 browns in one plug) is on the adjacent side.
Now they had one end of the brown wire hooked to another ballast next to the giant accell super coil that used to be in it. I know I cant use ballast power with the drop in dizzy, but does the ballast still need to remain for the alternator to function?
Should I power the dizzy and coil off the starter solinoid switch on the drivers inner fender? or inside from the fuse panel.
The other thing I found odd is the black and yellow wire from the ecu was hooked to the ned side on the coil, but I found a wire spliced into it running into the firewall to a house hold wire nut and a wire in the dash. Anyone have a clue as to maybe why someone would do such a thing?
I really appreciate any help I can get and will give any more information needed. Ive been working on muscle cars for years but this is the first 70's mopar ive messed with.
So I pulled the harness, chopped out all the factory ignition wires because im converting it to a ready to run drop in distributor and coil.
Now the questions come as I do not understand why the alternator wireing connects to a ballast resistor on the firewall. I took off the white wire off because it went to the ECU so the only wires attached to it are the dark blue wire with the black jumper to the terminal above it, and the brown wire(which is 2 browns in one plug) is on the adjacent side.
Now they had one end of the brown wire hooked to another ballast next to the giant accell super coil that used to be in it. I know I cant use ballast power with the drop in dizzy, but does the ballast still need to remain for the alternator to function?
Should I power the dizzy and coil off the starter solinoid switch on the drivers inner fender? or inside from the fuse panel.
The other thing I found odd is the black and yellow wire from the ecu was hooked to the ned side on the coil, but I found a wire spliced into it running into the firewall to a house hold wire nut and a wire in the dash. Anyone have a clue as to maybe why someone would do such a thing?
I really appreciate any help I can get and will give any more information needed. Ive been working on muscle cars for years but this is the first 70's mopar ive messed with.
