Need help Making my YJ go -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Need help Making my YJ go

Ruffstuff 10 year saleBDS 4-1/2" Suspension Lift Kit - Jeep Wrangler YJRough Country Lift Kits and Parts!

Unread 09-08-2011, 02:18 PM   #1
Registered User
1991 YJ Wrangler 
Join Date: Jul 2011
Location: Wahiawa, HI
Posts: 10
Need help Making my YJ go

Bought a 91 YJ, 4.0L, 5 speed. This is my first jeep. I was rear-ended, so to make the most of my insurance money, I took the jeep apart myself and took just the tub and hood for paint and bodywork. In that time, I discovered the old wiring harness was toast. I replaced it with the E-Z 12 circuit wiring harness. That harness is not compatible with the computer in the front end. I am replacing the EFI with a Weber carburetor, removing the computer and going to a simple set-up.

1. What distributor can I use that does not have the computer sensor plug? The ones I found are for the old CJ 4.2L engines. Will this work in my 4.0L YJ?
2. Do I need to replace the fuel pump as well?

I have read many of the threads on here debating carb/EFI, but I canít seem to find any that address this issue specifically. Any help on this issue will be greatly appreciated. There seem to be many strong emotions both ways on this issue. My mind is made up, the computer is gone, and now I need help making my poor jeep run again. Thanks.

TexasTrue is offline   Reply With Quote Quick reply to this message
Unread 09-08-2011, 03:26 PM   #2
Web Wheeler
1991 YJ Wrangler 
Join Date: Dec 2010
Location: 14304 Niagara Falls, NY
Posts: 2,537
Basically it sounds like you're doing a "nutter" bypass. I imagine that any of the GM HEI kits are good for the distributor in this. I'm not an expert tho. Somebody who has done it on an 89 or earlier with the 4.2 would probably be able to help better.

oldtime_ironman is offline   Reply With Quote Quick reply to this message

carburetor , distributor , fuel injection , weber carb , wiring

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.