RENAMED & SOLVED - CS130 to CS144 Alternator upgrade (INFO)

[3X00-Modified]

Why? What voltage is going to that pin on the Venture van that it can't take what the Beretta has there?

To verify what was done you should post pinout's from the donor and the receiving vehicle so those can understand the purpose of the resistor and the meaning for dropping that voltage level going in to the regulator. Because honestly to me that makes no sense. The only reason to drop voltage to the regulator would be to increase the output of the alternator since it thinks the battery is low so it will bump it higher. Very similar to the voltage mod that a lot of Grand Prix users do.

I found this on alternatorparts.com and http://www.nationsautoelectric.com/ext/order.html... You should not need a resistor.

1995-present vehicles that currently have the CS-130D or AD-230 alternators must use the D1-W1206 adapter
1996 and earlier GM vehicles that currently have the CS-130 alternator do not need any adapter.
1972-1986 GM vehicles with the SI series alternators use either adapter plug D1-W1201 or D1-W1204

The 1201 doesn't have a resistor and the 1204 has one... But both are only used when replacing a SI series equipped car... We already have a CS-130 and its not the D series... that's the GA's and 3400s that have a CS-130D.

[Beretta1234567]

The CS144 Alternator fits in place of the CS130 using the CS130 fan, just drill a new hole for the one mount and turn the 2.5 inch black bracket upside down for the new hole location.

[3X00-Modified]

I would have removed any wire from going to Pin F if the alternator does not have that on its original application and only hooked up Pin L... Also looking at that Pin L output it appears to touch nothing and only switches on if the voltage drops below 11.2 or above 16, its a ground source to ignite the light in the dash or alert the ECU to do so.

Just by looking at the diagram the CS 144 appears to be a 1 wire alternator, S being the voltage sensing wire so it knows what the voltage is, and then there is the terminal to the battery.

Might have been simply the fact that you have something hooked up to the F terminal that caused it to not turn on... Try it with only the S wire connected on the plug and see what happens, because judging by that photo the Venture really only has two active wires on that plug where the Beretta has 3 wires, and that's only if you have a base dash.

Hold on I'm reading some more info on the voltage regulator that may change what the L pin is used for... Same for the F pin.

This is what I found...

The switched 'light' (terminal 1 on SI or 'L' on CS), must have 12V switched power with between 35 and 350 ohm resistance (typically the light itself). If below 35 ohm, the CS units will fail. I have read that switched power (no resistor) can be connected to the 'F' terminal instead, where there is supposed to be an internal resistor. I've not confirmed this, so be ware.

And seeing how we already have a CS style alternator in our cars I see why we are using Pins F and L... One supplies the proper resistance if there is a Base dash installed and if not the F wire being hooked up to 12v should also supply this turn on voltage/resistance value. A little confused on why it still didn't work for you... I would have gone to an auto parts store and checked the pins on their tester to see what it supplied to make it run... then verified that on your vehicle. Or walked in with a CS-130 and CS-144 and asked if they are plugged in any differently on their tester.

What is fuse 4 listed for on our cars, I'm curious on how they phrase it since it hooks to the alternator and something else... Mine is at home in the garage so I can't check right now.

[Beretta1234567]

The CS144 Alternator fits in place of the CS130 using the CS130 fan, just drill a new hole for the one mount and turn the 2.5 inch black bracket upside down for the new hole location.