Putting fuel injection BACK on 1993 4.0 - Page 2 - JeepForum.com
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 JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Putting fuel injection BACK on 1993 4.0

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineRubicon Express Suspensions from CCOR 706-207-4140Smittybilt Hard Tops @ Oconee Off-Road! 706-534-9955

Unread 09-16-2013, 12:04 PM   #16
Registered User
1987 YJ Wrangler 
Join Date: Jun 2013
Location: downers grove, il
Posts: 57
So on my Jeep, when the replacement 4.0 showed up without fuel injection, I am thinking the PPO just bolted on a 258 manifold with a weber carb. Would it have as simple as that?

fishtruck is offline   Reply With Quote
Unread 09-16-2013, 12:25 PM   #17
Web Wheeler
1989 YJ Wrangler 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,008
Yep, thats it. Manifold and the other stuff and you will be running a MPFI.
Que89YJ is online now   Reply With Quote
Unread 09-16-2013, 01:05 PM   #18
Registered User
1990 YJ Wrangler 
Join Date: Jan 2011
Location: Helena, MT
Posts: 2,900
Yep you just need everything thing I have to convert back to FI plus figuring out the wiring. hopefully it has the 4.0 flywheel so you wont have to pull the motor that should be easy to check.
build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
skyj is online now   Reply With Quote

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