CS130 Alternator and 2 wire Idiot Light wiring help

[Tynan918]

CS130 Alternator, 3 wire plug and 2 wire Idiot Light install...

How can I wire this 2 wire idiot light to my CS130 alternator ? I've been trying to decode this wiring setup/route for 4 hot days now...

Idiot light has two wires running from it, brown and black.

Alternator has a 3 wire plug, and on it the wires are labeled "SFLP" (P has no wire.).

I'm told: "S" wire goes to the alternator battery stud, F isn't used if I'm using the idiot light, "L" is wired to the idiot light power wire (brown), and there is no wire for "P" on the plug."

I have the "L" wire attached to some wire I extended through the firewall and attached to the brown wire at the idiot light and a ground wire running straight from the negative battery terminal, but the light doesn't power on when I turn the key on...

Only way I get the idiot light to power on once the key is in the on position, is if I have the "L" wire also connected to the battery stud on the alternator, but when the key is turned off, the idiot light won't turn off until I disconnect the wire...

 

[Tynan918]

4 gauge is needed (or is the best option.)

I choose to run the 'idiot' light. It's a quick way to know that there is an issue rather than not noticing the voltmeter is reading in the 'bad' range. My son has melted down several alternators due to a low budget header we bought and repaired about 5 times. The 1st sign of a cracked manifold was the alternator light would illuminate. Me and the local alternator rebuilder were on a 1st name basis back then haha

Gotcha on the wire gauge 😎

I've killed about 5 alternators in the last year screwing with the complicated wiring of the previous owner regarding the alternator and idiot light...ready to get rid of it and simplify the wiring with this 2 wire resistor plug...got it this morning...