HOrnbrod Posted June 6, 2008 Share Posted June 6, 2008 okay so, I've been searching around and I happened to find an ECU on ebay. It's from an MJ 5 speed 2.5 litre, but it's a 91 model, not an 86. I was wondering if this could possibly fit, or does it have to be the exact same year? any responses would be greatly appreciated! Thanks!!!Chris Nope, you need an ECU from a Renix MJ or XJ, 1990 or below w. the 2.5 and 5-speed to be compatible w. your rig. Link to comment Share on other sites More sharing options...
mvusse Posted June 6, 2008 Share Posted June 6, 2008 The differences are Renix or Chrysler (90 and older/91 and newer?), as well as auto/stick and possibly 2wd/4wd. Look at the model number on yours, I believe the last 4 digits need to be the same. Link to comment Share on other sites More sharing options...
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