Dammerung Posted September 6, 2019 Share Posted September 6, 2019 I’ve heard that you can replace the ECU in an 88 and below MJ/XJ and gain a few extra ponies from the engine, but what about the TCU? Does replacing that with an 89-90 do anything for me? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
WahooSteeler Posted September 6, 2019 Share Posted September 6, 2019 88 and up TCU's are good to go. 87 TCU's apparently had poor shift points and are worth replacing with an 88+ TCU. Link to comment Share on other sites More sharing options...
cruiser54 Posted September 7, 2019 Share Posted September 7, 2019 Absolutely^^. 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