Re: Voltage on pin 1 of SI alternator
Some aftermarket alts need to be revved up to start. OE's don't.
If the new harness matches factory original, jumper the two outside wires of the ext regulator. You might need to jumper the inside wires also.
If the new harness is wired for an int reg alt, Post 1 should be on-off with the key.
Post 2, a sensor wire, should go to the fuse panel to sense the load, lower voltage to pump up more.
Console ammeters are connected between the horn relay buss bar and the battery junction block and measure millivolts across the length of wire going across the rad support.
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