Universal 320amp alternator, with GM regulator, and single wire hookup?

[MonkeyMan]

I've got the single wire hook up plug to connect to the GM regulator, the wire on the plug appears to go to the "L" connection on the regulator..

Is this for the dash lamp?

What is being covered by the heatshrink on the wire?

My stock wiring apparently looks like the pic below, however, I've read that the alt in my car only uses the lamp wire, and doesn't need/use the other connection (was apparently used in an older model of the same car)

So, can I simply connect the single wire from the 4 pin GM regulator, to the original "Lamp" wiring? or is whatever is covered by the heatshrink actually a resistor (edit: measures as a 50ohm resistor)? and the wire is intended to be connected to a switched 12volts from the "ON" circuit in the car?

thanks!

Edited July 27, 2013 by MonkeyMan

[MECHMAN]

The L terminal turns the alternator on

[MonkeyMan]

I'm a bit confused now...

Using the original Lamp wiring, with the 50 ohm resistor removed, the alternator charges, however, the battery light on the dash doesn't turn off, and I measure 0 volts on the L terminal on the alternator....

How can the alternator turn on if this terminal measures 0 volts?

[MonkeyMan]

I figured it out...

You can't run this regulator with a single wire connected to the dash globe, it also needs a constant battery connection to the "S" (sense) terminal for the light to turn off, and for the regulator to actually regulate properly, otherwise the output voltage is about 0.2volts too high....