ALL the pins in that connector are suspect, solder/splice ALL the wires,
sounds like you only did one of them....that connector is an assy line aide not in earlier sharks....
then try it, check your alt reg pins with engine running revved maybe once to 1500 rpm after it starts....then at idle....
the regulator connector should have two pins -- arranged like that....
looking from backside of alt, facing forward on the car, the MOST CLOCKWISE wire (typically red on a aftermarket connector, and most GM cars, but not on the vettes for some stupid reason) that wire will have same as the alt output stud....12+ volts 14 volts, whatever...that is the sense wire.....the other wire, least clockwise will have that resistor wire or maybe the idiot light going to the switched 12 ignition source from the switch...that should have only slightly less than the above 12-14 some odd voltage.....
if not, or your have a lit idiot light, you have a bad alternator....that second alt reg wire above, should have voltage on it with engine running...but almost none with ign on and engine still.....as if it was going to light the idiot light...grounding that end of the bulb....
:flash: hope that not tooooo confusing....
:bonkers:
