mnkyboy Posted July 17, 2011 Share Posted July 17, 2011 I have an 89 MJ 2.5l AX4 231 and a 90 XJ 4.0l AW4,242 As some of you know my wife customized the XJ by flipping it on the freeway. The XJ still runs and drives great so I have been thinking of replacing my 2.5L with the 4.0l from the XJ,but I'm not sure on the wiring harness. Should I get a 5spd harness from an XJ or MJ or should I just use the stuff from the XJ?,I'm not sure since its an AW4 And before someone points out that the 4.0l won't fit my trans, I was converting the MJ to an AX15 so I have a 93 XJ AX15 to use for the swap. Link to comment Share on other sites More sharing options...
jimoshel Posted July 17, 2011 Share Posted July 17, 2011 you will need the harness for the AX15 Link to comment Share on other sites More sharing options...
mnkyboy Posted July 18, 2011 Author Share Posted July 18, 2011 That's what I thought. how about the ECU? I've been told the auto computer has more agressive mapping,if it is as good or better then the 5spd ECU I would like to use it since I recently replaced it. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now