Failure Computer 1992 Manual Transmission

[PAULINO ENCISO]

Hello Team I am having several issues as lack of power and Shut Down by my Comanche after to drive some miles. I think the issue has been the computer. Do you know some place to get a reemplacement for 1992 Manual Version ? 

[hgeranium]

52 minutes ago, PAULINO ENCISO said:

Hello Team I am having several issues as lack of power and Shut Down by my Comanche after to drive some miles. I think the issue has been the computer. Do you know some place to get a reemplacement for 1992 Manual Version ? 

Are you 100% sure that it’s the computer? A 4.0 has many causes for the symptoms that you’ve explained.
 

You can buy reman ECUs from any big box retail or online store, or preferably grab one from a junkyard. There should be a few years that have the same ECU that you need; someone smarter than me can tell you. 

[amsuco]

Are you still running a cat?  Having a plugged catalytic converter gave me those same symptoms.

[ThatJeepGuy]

Check out car-part.com

 

Don't know your engine size but any 92-94/95 xj with the same drivetrain should be fine for a donor pcm

[Eagle_SX4]

The most common cause of an issue like this would be a failing fuel pump. I would check your fuel pressure first before you buy a new computer. Fuel pumps are much cheaper than computers.