Wiring Cleanup Questions - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ General Discussion Forum

Join Wrangler Forum Today


Like Tree1Likes
  • 1 Post By Rauland04
Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-15-2019, 08:54 AM
Thread Starter
  #1
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
Wiring Cleanup Questions

89 with 4.2 and HEI

Last night I pulled the plug for the computer thru the firewall. I trace all the wires and pulled them out. However, it didn't seem like I removed nearly as much as I expected.

There are two diagnostic plugs by the battery. What I did whacked a lot of the wires to one of the plugs. Can all those wires to both plugs completely go away?

__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-15-2019, 09:01 AM   #2
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
All that can go away, those were your OBD I connectors which nobody uses anymore and you do not need because none of those sensors are in use anymore if you've pulled both computers.

__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Old 03-15-2019, 09:03 AM   #3
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
Be careful not to cut your fan motor wire, it's the only thing you need on that run to the battery tray.
__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Sponsored Links
Advertisement
 
Old 03-15-2019, 09:09 AM
Thread Starter
  #4
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
I have a mechanical fan.

There are 2 relays by the diagnostics plugs and a little circuit board in a plastic case with 4 wires. I need to figure out what those are for too.
__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-15-2019, 09:14 AM   #5
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
Those can go too. I can't even remember what they were for, but they loop back to the diagnostic connectors
__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Old 03-15-2019, 09:15 AM
Thread Starter
  #6
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
Awesome. Thanks!
__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-15-2019, 09:29 AM   #7
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
Everything connected to those relays and connectors can be traced back to a sensor or emissions solenoid valve that is no longer needed or in use. If you have any questions about specific parts, post a pic. Manifold sensors can be left in place until you find a plug or you can just leave them in place.
__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Old 03-15-2019, 11:12 AM   #8
Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Luckymac's Avatar
 
Join Date: Jan 2014
Location: SouthEast of Denver
Posts: 8,575
Quote:
Originally Posted by Got it at last View Post
Be careful not to cut your fan motor wire, it's the only thing you need on that run to the battery tray.
He means your heater fan motor.

Pic 1 is what I removed.
Pic 2 are brass plugs from the hardware store and a Dodge oil pan plug where the EGR tube used to go. As I remember, I had to cut the Dodge oil pan plug down, it was too long for my application.

Good Luck, L.M.
Attached Thumbnails
Click image for larger version

Name:	DSCF0293.jpg
Views:	20
Size:	233.6 KB
ID:	4135321   Click image for larger version

Name:	DSCF0597.jpg
Views:	21
Size:	223.2 KB
ID:	4135323  

__________________
"Wrangler....It's not just a vehicle, It's a lifestyle".
.................................................. ........................
1987 YJ-4.2L-Standard Shift- Re-manufactured Carter Carb-2" body Lift-31X10.5X15 BFG KOs-190K Miles No back seat.
HEI distributor with computer and all related relays and wiring removed.
12K Badlands winch with dual batteries.
Warn front bumper. Matching imitation Warn bumper on the rear.
Luckymac is offline   Quote
Old 03-15-2019, 10:21 PM
Thread Starter
  #9
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
So I removed the two test ports. I also removed the two relays. They were manifold heater and idle speed up relay. Looks like every thing else stays. Only question was on electric choke. I'm sure it must go away also.

And she still runs great...
Attached Thumbnails
Click image for larger version

Name:	20190315_221532_1552706382748.jpg
Views:	15
Size:	184.1 KB
ID:	4135467  
__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-15-2019, 11:57 PM   #10
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
You definitely want to keep the electric choke.
__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Old 03-17-2019, 07:58 AM
Thread Starter
  #11
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
Here are a couple after pictures. Looks much better in there. Thanks for the help.
Attached Thumbnails
Click image for larger version

Name:	20190316_121857_1552827452743.jpg
Views:	18
Size:	199.5 KB
ID:	4135699   Click image for larger version

Name:	20190316_121655_1552827470178.jpg
Views:	34
Size:	196.2 KB
ID:	4135701  

rushwal likes this.
__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-17-2019, 04:56 PM   #12
Supporting Member

5-Year WF Supporting Member
 
Got it at last's Avatar
 
Join Date: Nov 2016
Location: Phoenix, Az
Posts: 1,698
Looks pretty good.....
__________________
'89 YJ 4.2 with MC-2150 Carb & HEI, 2-1/2" Magnaflow Exhaust. BA-10, NP231, Adams front Diveshaft, SYE kit, 31x 10.5 x15 BFG KO's, 2 1/2" RE Springs, 1" Body Lift. RS5000x shocks, Hella H-4's, No emissions.

FSM Manuals https://www.dropbox.com/sh/0vfmk6jc5...v7lceZk7a?dl=0
Got it at last is offline   Quote
Old 03-23-2019, 06:39 AM
Thread Starter
  #13
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
Well jeep. So power has been off to the radio since I pulled the wiring out. Also the courteously lights were out, but the switch broke at the same time. So I replaced the switch and still no light. Some investigation shows that they are on the same fuse. After some quality time with the manual I discovered that there in no voltage on the fuse. Per the drawing it is bussed to another fuse that has voltage. So I guess the connection behind the fuse panel broke?

Now I have plans after softball games end...
__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Old 03-23-2019, 09:28 AM   #14
Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Luckymac's Avatar
 
Join Date: Jan 2014
Location: SouthEast of Denver
Posts: 8,575
It's somewhat common for the wire terminals in the fuse panel on the inside of the firewall to fail.

It's easier to access the fuse panel if you pull the speedo/tach bezel and then pull the tach.
Unbolt the large connector under the hood by the brake booster and then unscrew the fuse panel from the firewall. Split the fuse panel open and look for terminals that are failed. You might be able to see the failed terminals from the face of the fuse panel.

Pic 1- is a failed terminal
Pic 2- is the old and new terminal. I bought replacement terminals at NAPA. They don't usually stock them but a helpful clerk worked with me to find a terminal that would work.
Pic 3- is the fuse panel opened up.
Pic 4- is crimping the new terminal on one of the wires.

Good Luck, L.M.
Attached Thumbnails
Click image for larger version

Name:	DSCF0514.jpg
Views:	20
Size:	226.1 KB
ID:	4137045   Click image for larger version

Name:	DSCF0529.jpg
Views:	23
Size:	228.7 KB
ID:	4137047  

Click image for larger version

Name:	DSCF0513.jpg
Views:	20
Size:	232.5 KB
ID:	4137049   Click image for larger version

Name:	DSCF0533.jpg
Views:	21
Size:	235.3 KB
ID:	4137051  

__________________
"Wrangler....It's not just a vehicle, It's a lifestyle".
.................................................. ........................
1987 YJ-4.2L-Standard Shift- Re-manufactured Carter Carb-2" body Lift-31X10.5X15 BFG KOs-190K Miles No back seat.
HEI distributor with computer and all related relays and wiring removed.
12K Badlands winch with dual batteries.
Warn front bumper. Matching imitation Warn bumper on the rear.
Luckymac is offline   Quote
Old 03-24-2019, 02:20 PM
Thread Starter
  #15
Jeeper
 
Rauland04's Avatar
 
Join Date: Feb 2016
Location: Fulshear TEXAS
Posts: 123
Thanks! Not exactly sure how to describe the problem I had. Either I screwed up or I got jeeped. Turns out I cut out one too many wires while cleaning out the engine bay. But, the wire I cut was a red/white on E2 of the bulkhead connector.
According to the FSM that wire does not exist. Fun troubleshooting, but I'd rather been fishing.

__________________
We are a 3 Jeep family.
Me: White 2016 JKU Sport, manual with leveling kit and 295/70/17 Patagonia MT's.
Wife: Chief Blue 2018 JKUR, manual, bone stock.
Daughter #1: White 1989 YJ Laredo, 4.2, automatic, carter BBD, HEI on 235/75/15 KO2's.
Rauland04 is offline   Quote
Reply

Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
4.3l vortec swap wiring questions for 89 yj Jeeperyj89 YJ Tech Forum 4 08-25-2017 04:11 PM
Wiring Switches - A Few Questions. Renegade007 JK General Discussion Forum 0 09-04-2015 12:02 PM
Some wiring questions.. Logtec Off Road and External Lighting 2 12-29-2013 07:05 PM
used hardtop wiring questions Smgchandler TJ General Discussion Forum 2 08-10-2013 06:29 AM
2005 Wrangler SE Fog Light wiring questions ptm6295 TJ Tech Forum 1 06-30-2010 07:49 PM





All times are GMT -5. The time now is 11:15 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Jeepģ, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC