MJnXJ2 Posted December 8, 2013 Share Posted December 8, 2013 OK here goes my first post. Thank you in advance and sorry for the negative start :doh: . well i am trying to fix a no start 1991 MJ 5spd sport. i am a seasoned tech(i do this for a living mainly euro/vw stuff) but as we tech's don't like to admit defeat ill reach out to people with more chrysler experience than i have. i have never had good luck with their wiring. so here is the skiny. any help is highly appreciated. i have no crank signal, no cam signal, obviously no spark, no injectors/no grounding signal/no power from the asd relay to them or the coil. i have supply voltage ie 5 volt but they seem to drop off while cranking or i might have a lead on my OSC going out. no asd activation basically so no power out on the green and orange wire i have power on the supply for asd thou, i have key on power to the ecu and have cleaned most of the grounds. the ecu ground is ok black and tan wire. i get 12v on the coil wire with a meter but it won't hold a load with a test light. the prior owner has replaced everything ecu,coil,crank sensor and distributor.this thing was kinda handed off as junk. i have check many of the wires for breakage just to find them ok. :fs1: :eek: :banana: :laughin: kinda fed up with it. hope you guys can help thank again :bowdown: :bowdown: :bowdown: Link to comment Share on other sites More sharing options...
Jeep Driver Posted December 8, 2013 Share Posted December 8, 2013 Ignition switch. http://comancheclub.com/topic/23310-ignition-switch-help/ If I read you correctly........ You state that you have no power or power fades when you turn ignition.....yes? no? Well.....if all checks out as you state............what is left? Edit: I don't have a 92 to look at.....so.......I'm guessing........ Power supply in from bat/alt should have a fused link to a breaker..........link or breaker is giving a weak supply giving you the illusion you have power but under load if fades. Just a guess. The PO threw some parts at it though didn't he? When you give up on it, just drop it off at my house. :P Link to comment Share on other sites More sharing options...
MJnXJ2 Posted December 9, 2013 Author Share Posted December 9, 2013 it shows 12v on the meter at the coil but it won't hold a load like a test light. Link to comment Share on other sites More sharing options...
MJnXJ2 Posted February 6, 2014 Author Share Posted February 6, 2014 ok guys so i know it been a while now but I FIXED IT!!! it came down to 4 things actually. first the distributor connector on the harness side was worn out and wasnt making proper contact in the sockets. second goes the same for the crank sensor socket as the dist. third the distributor was clocked one tooth off(prior owner installed a new one wrong)!! fourth but such a biggie.....THE CAT WAS CLOGGED ALMOST SOLID!! now its getting cleaned up and prepped for MODIFICATIONS!!!!! Link to comment Share on other sites More sharing options...
deziped1 Posted February 7, 2014 Share Posted February 7, 2014 It should start and run now you say? Link to comment Share on other sites More sharing options...
MJnXJ2 Posted February 7, 2014 Author Share Posted February 7, 2014 yup it should run great once i get a new cat and some other small parts. Link to comment Share on other sites More sharing options...
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