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View Full Version : ECU/ECM compatibility


hellionss
09-23-2009, 12:55 PM
I have a 91 XJ that I've been told has a 95 XJ motor in it. It hasn't run correctly since I bought it. I've put a ton of new parts into it to include a fuel pump, distributor, etc. (which all were bad or failing, not just changing parts here) Signs are all now pointing to the computer. So, because I'm on a tight budget I'd like to get a used computer if possible, and save money to put into the JK. That being said, I would like to know what ECUs are compatible and furthermore, should I be looking for a 95 ECU because of the newer motor? Thanks in advance!