Welcome to the North American Subaru Impreza Owners Club Monday December 11, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Subaru Conversions

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 12-31-2004, 03:19 PM   #1
Scooby Specialist
Member#: 40484
Join Date: Jul 2003
Chapter/Region: NWIC
Location: Salem, OR
'02 Murdered WRX
'02 Silver Legacy

Default '86 GL --> '96 Legacy alternator question

My brother and I am converting an '86 GL into a 2.2 liter from a '96 Legacy with the harness from a '91 Legacy, we are disassembeling the wiring harness and we ran into a discrepancy with the alt connector, the harness is a circular 3 wire connector and the engine's alt from a '96 is a square connector with two progs. Which of the two wires from the harness do we need to splice into the alt without the connector?

* Registered users of the site do not see these ads.
pilfflip is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-31-2004, 07:09 PM   #2
Scooby Guru
Member#: 4800
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston, Tx
1990 Legacy & 97 OBS


You're going to run into a lot more issues with wiring. The 96 legacy is OBD2. The 91 legacy is OBD1. I'd strongly suggest getting the wiring harness from the 96-99 vintage legacies (95 had its own weird harness, so I'd stay away from it)

As for the alternator, One wire is the light, one is sense, and on one is ignition. The big fat one on the 91 harness is the ignition wire. You don't need it. The older alternators needed an ignition signal to turn the alternator on. The newer alternators turn on once rpm is above a certain point.

These scans will tell you which one is light and which ones is sense
Legacy777 is offline   Reply With Quote
Old 01-03-2005, 12:03 AM   #3
Scooby Specialist
Member#: 22879
Join Date: Aug 2002
Location: missoula , montana

He's taking a complete 91 legacy 2.2 harness and running a 96 engine. He's not trying to use a 96 ecm with a 91 harness.
You can cut the plug on the alternator and soldier the old wires into place and it will work just fine. You'll want to look in a factory service manual and figure out which wire is what though. I did this for my new wrx engine.
I think i might still have the connector for the 96 alternator around somewhere if you want it....
Good luck
serious is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
And an '86 GL carb question opus 'Old School' Subaru Forum 4 12-15-2006 12:33 PM
'86 GL heater blower resistor opus 'Old School' Subaru Forum 2 11-27-2005 02:17 AM
APEX Power Intake -> 98 Legacy GL DanCT Legacy Forum 4 04-08-2005 08:37 PM
'86 gl-10 is my tranny gone? rexspeedworthy Transmission (AT/MT) & Driveline 3 04-16-2003 09:27 AM
'86 GL Wagon won't shift gears in Drive matman23 Transmission (AT/MT) & Driveline 1 03-27-2003 01:04 AM

All times are GMT -4. The time now is 12:25 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.