500kalle Posted October 11, 2016 Share Posted October 11, 2016 The isa of my 88s 2.5L4 tbi MJ does not work, I changed into a new one but there's still the same issue, it does not move in or out! Does someone know where the isa's wires are connected and how I may check if there's the right connection/contact/signal on each wire? E.g.: which wire is connected to ground, which to the ecu on which clamb, ..... aso!!! Thanks a lot from germany!!!! Link to comment Share on other sites More sharing options...
87MJTIM Posted October 12, 2016 Share Posted October 12, 2016 Here is a link to an 88 factory electrical service manual. http://comancheclub.com/topic/12083-electrical-manual/ It should assist you with all things electrical on your 2.5 Link to comment Share on other sites More sharing options...
500kalle Posted October 12, 2016 Author Share Posted October 12, 2016 Link to comment Share on other sites More sharing options...
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