70barracuda Posted July 7, 2019 Share Posted July 7, 2019 Just picked up a 429 computer from the junkyard and was wondering if it will work for the 2.5. I could have sworn I saw it somewhere but can't seem to find the info again. Anyone know if it'll swap? Link to comment Share on other sites More sharing options...
mnkyboy Posted July 7, 2019 Share Posted July 7, 2019 I don't see how it could, besides 4cyl vs 6 cyl the Renix 4.0l is MPFI and the Renix 2.5l is TBI. Unless you found a 2.5l TBI 429 ECU, I'm not sure if they used that part number on the 2.5ls though, typically it's associated with the 4.0l. Link to comment Share on other sites More sharing options...
Jeep Driver Posted July 7, 2019 Share Posted July 7, 2019 91 and 92 are MPI. None the less.............no. Link to comment Share on other sites More sharing options...
mnkyboy Posted July 7, 2019 Share Posted July 7, 2019 91-92 are Chrysler MPFI so a Renix 428/429 ECU wouldn't be any good there either. Link to comment Share on other sites More sharing options...
Pete M Posted July 7, 2019 Share Posted July 7, 2019 33 minutes ago, 70barracuda said: Just picked up a 429 computer from the junkyard and was wondering if it will work for the 2.5. I could have sworn I saw it somewhere but can't seem to find the info again. Anyone know if it'll swap? be sure to put your truck's info in your signature Link to comment Share on other sites More sharing options...
70barracuda Posted July 7, 2019 Author Share Posted July 7, 2019 22 minutes ago, Pete M said: be sure to put your truck's info in your signature Got it! Took me a bit to figure it out tho.. And ah that sucks. For some reason I thought the computers could interchange. Maybe I was thinking manual vs auto. Well now i guess I gotta swap to a 4.0 lol Link to comment Share on other sites More sharing options...
70barracuda Posted July 8, 2019 Author Share Posted July 8, 2019 Does anyone know if the 89 to 90 2.5 ecu offers the same benefits as the 4.0? Or is it strictly a 4.0 upgrade? And I'll be putting up the one I got for sale soon too Link to comment Share on other sites More sharing options...
Jeep Driver Posted July 8, 2019 Share Posted July 8, 2019 1 hour ago, 70barracuda said: Does anyone know if the 89 to 90 2.5 ecu offers the same benefits as the 4.0? Or is it strictly a 4.0 upgrade? And I'll be putting up the one I got for sale soon too Does not apply to the 2.5. Link to comment Share on other sites More sharing options...
cruiser54 Posted July 9, 2019 Share Posted July 9, 2019 Do the CPS mod if you want a little more pep from the 2.5. 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