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iTrader: (1)

I know it's been beat to death, but I can't find much on a 4 wire alternator. I have a DR44 alternator with a 4 pin connector I need to wire up in my Nova. For pin "B" do I use the original brown wire that goes to the dash lamp AND a resistor, or just the brown wire without the resistor?

Project GatTagO

iTrader: (7)

If you have a dash lamp, wire the L terminal through that. If there is no dash light, then you have to use a resistor. Also, wire the S terminal to your main power distribution point. This will allow the alternator to sense (hence S terminal) the load on the system and adjust output accordingly. Without the S terminal you will experience voltage drop as more components are turned on (coolant fan, lights, etc...).

Andrew

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iTrader: (1)

Would the "S" terminal be looped to the stud then? Wouldn't that sense load?

Project GatTagO

iTrader: (7)

No. If you loop it to the stud that will just sense the alternator output and not account for any other accessories. The S terminal needs to go to the main power distribution point, where ever that might be in your system. Wiring the S terminal is optional, but it will give you much better alternator functionality.

Andrew

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iTrader: (1)

Alright, I'll have to find the best source for that "S" terminal wire. Thanks Andrew.

Project GatTagO

iTrader: (7)

Tons of info here, including everything I mentioned:

http://www.pirate4x4.com/tech/billavista/Wiring/Part2/

If you have the 4 pin alternator connector you will need Metripack 150 female terminals to add the S wire.

Andrew

Project GatTagO

iTrader: (7)

Or you can get a pigtail with all 4 wires already terminated:

http://store.alternatorparts.com/c13...connector.aspx

Just remove the 2 that you will not be using, but make sure you use cavity plugs to keep moisture out.

Andrew

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iTrader: (1)

I've got the connector and a bag of terminals somewhere. Thanks for the links.