Power to the coil but no spark.
https://www.forabodiesonly.com/mopar/threads/blowing-maxi-fuse-immediately.545896/#post-1974394872
I don't know why there are 3 wires connected to the coil negative.
Ignoring the capacitor, there should be one wire from the Ignition 2 (start) side of the ballast resistor to the positive on the coil.
On a '74 that would have originally been Brown and 16 gage IIRC.
There should be one wire connecting the coil negative to the ECU.
(The wire to the top of pentagon connector is power in. That should connect to the Ignition 1 (run circuit)
An easy way to do that is a piggyback on the ballast resistor. It should be a 0.5 Ohm resistor. A '74 originally had a 5 ohm resistor as well. You don't need that unless you are using an original ECU from that time period.)
On the pentagon plug, the wire to the left connects to the coil negative. That's all that's required.
The two wires on the right go to the distributor. They carry the signal.
Your ECU harness has different colors than factory. Doesn't matter as long as you identify them based on their position on the pentagon plug.
And tell us too.
he has an aftermarket build it yourself harness kit.
https://www.forabodiesonly.com/mopar/threads/blowing-maxi-fuse-immediately.545896/#post-1974394872
I don't know why there are 3 wires connected to the coil negative.
Ignoring the capacitor, there should be one wire from the Ignition 2 (start) side of the ballast resistor to the positive on the coil.
On a '74 that would have originally been Brown and 16 gage IIRC.
There should be one wire connecting the coil negative to the ECU.
(The wire to the top of pentagon connector is power in. That should connect to the Ignition 1 (run circuit)
An easy way to do that is a piggyback on the ballast resistor. It should be a 0.5 Ohm resistor. A '74 originally had a 5 ohm resistor as well. You don't need that unless you are using an original ECU from that time period.)
On the pentagon plug, the wire to the left connects to the coil negative. That's all that's required.
The two wires on the right go to the distributor. They carry the signal.
Your ECU harness has different colors than factory. Doesn't matter as long as you identify them based on their position on the pentagon plug.
And tell us too.