SI to CS144 Conversion
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
SI to CS144 Conversion - Correct Pin Used in Plug?
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
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
Last edited by kaiserbud; Oct 2, 2010 at 01:16 PM.
Melting Slicks
Joined: Jan 2003
Posts: 2,877
Likes: 13
From: Doha
St. Jude Donor '08
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
Check this PDF file, it has everything you need to know :
http://photos.imageevent.com/durango...%20Install.pdf
Race Director
Joined: Jun 2000
Posts: 10,040
Likes: 672
From: FL
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:
Lectrec Limited:
NAPA:
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
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
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
Burning Brakes
Joined: May 2007
Posts: 1,022
Likes: 33
From: Lokeren, Belgium
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]
Nick
Edit : forgot link http://www.summitracing.com/parts/TFF-7625B/
[IMG]
[/IMG]
Last edited by dembo; Oct 2, 2010 at 01:40 PM.
Drifting
Joined: Apr 2008
Posts: 1,305
Likes: 2
From: Lewisburg WV
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.
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Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
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.
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.
1st Gear
Joined: Feb 2007
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Pro
Joined: Oct 2004
Posts: 573
Likes: 0
From: Stafford VA
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??
Why is a single wire adapter working with my CS144??
Melting Slicks
Joined: Jan 2003
Posts: 2,877
Likes: 13
From: Doha
St. Jude Donor '08
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.
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
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
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
Pro
Joined: Oct 2004
Posts: 573
Likes: 0
From: Stafford VA
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??
Why is a single wire adapter working with my CS144??
I don't want to ruin my new alternator, can anyone explain why my single wire adapter from LL appears to be working fine?
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
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.
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.
Last edited by kaiserbud; Oct 8, 2010 at 11:42 PM.
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
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?
Le Mans Master
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
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.
Last edited by MN-Brent; Oct 9, 2010 at 12:16 AM.