wrangler wiring harness - JeepForum.com

 
LinkBack Thread Tools
post #1 of 15 Old 03-17-2010, 05:42 AM Thread Starter
kukuni17
Registered User
1971 CJ5 
 
Join Date: Jul 2008
Location: PA
Posts: 19
wrangler wiring harness

Is a 1992 wrangler under dash wiring harness exchangable for a 1991 wrangler under dash wiring harness. I know that jeep revamped the gauges in 1992.

kukuni17 is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 03-17-2010, 05:46 AM
rustywrangler
Got my eye on you.....
 
rustywrangler's Avatar
 
Join Date: Apr 2005
Location: Syracuse, NY
Posts: 18,613
There shouldn't be too many changes under the dash but '92 was the "bastard year" for the YJ. Alot of things only work for the '92.


Congenital Heart Disease is a reality for me, BOTH of my children have it. Please read up and become aware for future generations

Lydia Ann-Acquired 08/05/05 Open Heart surgery 08/10/05
Jacob Patrick-Acquired 01/17/08 Open Heart surgery 02/15/08
rustywrangler is offline  
post #3 of 15 Old 03-17-2010, 08:57 AM
CjinPA
Registered User
 
CjinPA's Avatar
1984 CJ7 
 
Join Date: Mar 2006
Location: Dickson City, Pa. (North East, Pa)
Posts: 1,096
No, a 92 under dash harness will not work in a 91. The 92 harness is completely different than the 91. 1991 was the crossover year, first year for the 4.0L motor in the YJ. An 87 to 91 under dash harness will work in your 91 YJ.


-

84 CJ7 Northstar V8
91 YJ Renegade.

I've been in this rut plenty long enough, I know what to expect. Weather my day is hell, or weather it goes well is kind of up to me I guess.
CjinPA is offline  
post #4 of 15 Old 03-17-2010, 06:47 PM Thread Starter
kukuni17
Registered User
1971 CJ5 
 
Join Date: Jul 2008
Location: PA
Posts: 19
Thank you......
kukuni17 is offline  
post #5 of 15 Old 04-05-2010, 02:41 PM
ccloyd
Registered User
1991 YJ Wrangler 
 
Join Date: Feb 2010
Location: Lakeland, fl
Posts: 5
91 YJ Wiring Harness Interchangeability

Can anyone tell me if a 1991 engine wiring harness is the only one that will work on my 91 wrangler? Will a 92? 88? etc...
ccloyd is offline  
post #6 of 15 Old 04-05-2010, 03:04 PM
idaholtby
Registered User
1991 YJ Wrangler 
 
Join Date: Apr 2008
Location: Meridian
Posts: 2,563
As far as the engine harness' from 91-95 go, they are the same and are interchangeable. The only differences will be that some of the sensor connections changed between the years, but this is easily remedied. For instance, the '91 engine temp sensor for the gauge had a single wire push on connection, were as the '92 and later had a weather pak connector. Same is true for the oil pressure sensor, but the electrics is the same, only some of the connectors for the sensors may be different. If I missed something, I am sure it is easily overcome. The OBDI engine harness is essentially the same and is compatible from '91-'95 except for the few sensor connections that are easily overcome. Pre '91 is a different ball game altogether.
idaholtby is offline  
post #7 of 15 Old 04-05-2010, 03:07 PM
ccloyd
Registered User
1991 YJ Wrangler 
 
Join Date: Feb 2010
Location: Lakeland, fl
Posts: 5
Thanks for the info. I'm only missing one section of the harness - the section from the firewall to the speed sensor on the tranny, so I suppose I better stick with a 91...
ccloyd is offline  
post #8 of 15 Old 04-05-2010, 03:31 PM
idaholtby
Registered User
1991 YJ Wrangler 
 
Join Date: Apr 2008
Location: Meridian
Posts: 2,563
Quote:
Originally Posted by ccloyd View Post
Thanks for the info. I'm only missing one section of the harness - the section from the firewall to the speed sensor on the tranny, so I suppose I better stick with a 91...
Good choice, the speedo drive for the '91 (outside of the engine bay wiring) is different from all other years. The '91 uses both a mechanical and VSS output sensor at the transfer case outlet. On the '91 this is a two wire output and has a reed actuated switch for the VSS and still has the mechanical cable drive for the speedometer. '92 and later does not have the mechanical cable output and supplies the speedometer and VSS info with a hall effect sensor to the ecm.
idaholtby is offline  
post #9 of 15 Old 10-05-2015, 02:28 PM
Long54
Newbie
 
Join Date: Sep 2015
Location: Visalia
Posts: 4
ok so what about the 2.5l? what wire harness will match up to a 91 2.5l since it is fuel injected?
Long54 is offline  
post #10 of 15 Old 10-06-2015, 05:58 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 22,166
Long this is a old thread. You really should fill out your profile and post up to a new thread. As far as matching up it depends on what you are doing and with what section of the harness. Post up with the vehicle info to a new thread and you can get more help.
Que89YJ is online now  
post #11 of 15 Old 06-24-2016, 10:45 PM
CherryYJ
Registered User
 
Join Date: May 2016
Posts: 33
Ok so if I have a 1989 2.5L original harness under the dash and a 1994 yj 4.0MFI w/ the harness. How do I make the 89 dash harness work with the 1994 YJ Engine harness. Come on guys/gals help me out. Please don't say it's impossible. Lol
CherryYJ is offline  
post #12 of 15 Old 06-25-2016, 03:15 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 22,166
Quote:
Originally Posted by CherryYJ View Post
Ok so if I have a 1989 2.5L original harness under the dash and a 1994 yj 4.0MFI w/ the harness. How do I make the 89 dash harness work with the 1994 YJ Engine harness. Come on guys/gals help me out. Please don't say it's impossible. Lol
It's not. 5 to fire. You need to do the swap at the bulk head connector and the one in the middle. Do you have the manual for the 89 & 94? Do you have a meter and know how up use it?
Que89YJ is online now  
post #13 of 15 Old 06-25-2016, 05:04 AM
CherryYJ
Registered User
 
Join Date: May 2016
Posts: 33
Quote:
Originally Posted by Que89YJ View Post
It's not. 5 to fire. You need to do the swap at the bulk head connector and the one in the middle. Do you have the manual for the 89 & 94? Do you have a meter and know how up use it?
I belive I have a Chilton manual.. also have a volt meter.
CherryYJ is offline  
post #14 of 15 Old 06-25-2016, 07:36 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 22,166
I'm not going to have time to dedicate to you this weekend. I am going to get you started though
First use google search this way to search the forum for info:
http://www.jeepforum.com/forum/f12/f...oogle-1003734/






Go to this thread on post 11 and download the factory service manuals.
http://www.jeepforum.com/forum/f12/1...start-1414928/


I have a copy of the 95 but cant get it to you until Monday. Look up 5 to fire and see if you can find some of the info using the search trick I posted.
Que89YJ is online now  
post #15 of 15 Old 06-25-2016, 11:54 AM
Jeepsr4me
Registered User
 
Join Date: Dec 2004
Posts: 8,831
It can be done.... BUT you will be pulling some wires out of the bulk head connection and putting them in another slot.

Its not bad.. But do a search online for 87 bulkhead connector pin out.. then the 94.... There is a couple good
http://www.jeepforum.com/forum/f12/4...-list-1004732/
Jeepsr4me is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Do I need a wrangler specific 4.0 wiring harness? gsmith795 YJ Wrangler Technical Forum 19 03-25-2009 05:26 PM
Question about the '02 hardtop to '03 Wrangler wiring harness US1 TJ Wrangler Technical Forum 0 12-01-2008 06:50 AM
1994 Wrangler Wiring Harness iowajeepers YJ Wrangler Technical Forum 6 06-13-2008 08:12 PM
Wrangler Engine Wiring Harness 4.0 L 2003 robbytwo1 YJ Wrangler Technical Forum 5 06-06-2008 05:51 PM
2007 Wrangler Unlimited 4DR - Dash Kit & Wiring Harness Available? BIGKernel44 JK Wrangler Technical Forum 2 06-06-2007 10:36 AM

Posting Rules  
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome