kaiserbud

Gents....
I converted to a CS144. I have new harnesses and the CS144 adapter from Lectric Limited. I vVerified my CS 144 is charging (at AutoZone). My gauge shows no charging. The gauge reflects -30ish on running the motor with the headlights on bright. Otherwise it shows about a -5 charge while idling.

I will try to do a test at the alternator tomorrow using a amp gauge at the alternator.. but in the mean time - any thoughts? Gee - I 'guess' or thought my gauge is working.

Tonight I am charging the battery so that I can assess in the a.m. and verify 12v or 13.8 on running with a fully charged battery. thanks

HamadUP

The CS to SI pig tail adapter should have a in-line resistor to trigger the regulator to start charging.

Check this PDF file, it has everything you need to know :

http://photos.imageevent.com/durango...%20Install.pdf

kaiserbud

thanks - will do...

SteveG75

Go to NAPA and ask for part EC82. This is the correct harness. I looked at the Lectric Limited harness on line and it doesn't look right. Only shows one wire vice the two needed. Also, the NAPA harness has the right resistor built in.

Lectrec Limited:


NAPA:

UBETRUN

I plan (hope) to fire mine up this weekend for the first time in the car and using the same LL adapter with one wire, wonder what my gauge will read?

kaiserbud

I have the LL plug and it looks very similar to yours from NAPA.

I read an article that may give an indicator that it is an issue with the pins used in the connector. Evidently from 1999 and up they had a different configuration for the 'activating' wire.... I have to re-re-read this article before I get enough nerve to follow through

Also - fyi - I temporarily installed an OEM style SI 63amp alternator this morning and it worked perfect - so its got to be a wiring issue for me (not my gauge)

Here is the link:
http://www.ls1tech.com/forums/conver...or-wiring.html

dembo

I got this one from summit. Its the version for a car without idiot light so i assume its with a resistor wire
Nick

Edit : forgot link http://www.summitracing.com/parts/TFF-7625B/
[IMG][/IMG]

thegazman

I bought my adapter from my local Chevrolet dealer. They have two types; one with resistor and one without. If you have a indicator light along with your gauge you need the one without resistor.

kaiserbud

Gents - thanks....

I went to NAPA and none in Houston had teh EC82. Will check with Chevy on MOnday - I think ACDelco part is ST2145.

I will contact LL Monday as they seem like they are always on top of things. Maybe I just got teh wrong connector.

Will follow up and advise.

UBETRUN

I just fired mine up today and the ammeter reads correctly, charging at idle.

kaiserbud

NAPA has to order it... anyone have a GM part number? I checked with Chevrolter parts and they did not know of the part.

Thanks

mw.

http://www.novaresource.org/alternator.htm

UBETRUN

I read both posted links and am still confused. My car, a 1970, appears to work fine with the LL single wire adapter. After turning over the starter enough to prime the fuel system, the ammeter showed significant charging but after that initial start and running a few minutes, the ammeter dropped down to almost 0. Tonight, it fired right up after turning over less than a complete revolution and the ammeter showed just a couple amps charging for the minute or so I let it run.

Why is a single wire adapter working with my CS144??

HamadUP

You can modify your old adapter by adding a resistor in the "L" terminal, I did that by using a 100 ohm 2 watts resistor and its working flawlessly.

kaiserbud

I followed MW's post - that is a good one. I like how the thread has a list of alternator years/units atht work. Now mine is for a 19993 Cadillac DeVille w/o defogger - but I will check/verify for crossovers from that list.

I see the GM numbers in that article as follows.... I also checked the numbers with the local parts and show the PIco brand numbers

Idiot Light
2 wire, but has no resistor (idiot light harness wire already has resistor)
Delco 8077/GM 12083462 if you have an "idiot" light.
Pico makes a connector - 5328PT $8.99 locally.

Volt Gauge
2 wire, and one of the wires has a RESISTOR in it.l
Delco 8078/GM 12102921 if you have a volt gauge or
Pico makes a connector - 5327PT $8.99 locally.
NAPA = ECH EC82 = $17.99

UBETRUN

I don't want to ruin my new alternator, can anyone explain why my single wire adapter from LL appears to be working fine?

ajrothm

kaiserbud

Alan - Thanks for the GM (88861073) /AC Delco (PT2145) info..... I called GM today and they can order it. $24.00.

However - I did order the one from PICO (5327PT). Installed today and no change for the better. I did notice that the Pico jumper had the black wire going to the L connector.

I am learning a bit - so I took my ohms meter and checked for resistance on the connector in the black wire through the L terminal. It read 0 - so I wonder if this connector is indeed the 5327PT - maybe it is the 5328PT. I will return to the auto supply tomorrow as they did have a 5328PT in stock as well. Will advise.

btw - when the suggestion is made to run an additional 10 or 8 ga wire from the alternator to the starter.......is it LITERALLY from the alternator Output terminal to the starter? Or does it pass through the horn relay as well?????

also - I considered using a 6 ga (bigger is better?) but decided against it - man - the 6ga is huuuuge ! The 8 gauge is what I am going with.

kaiserbud

Steve - I can see in your pic that the terminal used is the F terminal. I also assume that if a resistor wire is involved, it is fatter - as also indicated by the wrapping in your pic?

MN-Brent

CS144 schematic. Just the L and S terminals are used in our SI conversions. The conversion harness uses the generator light feed wire from your original wiring excitation feed to the alternator. If you have a generator light in the dash, then you dont need the resistor to the L terminal. If you dont have a generator light, then you need the resistor to the L terminal.