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BlueMoon

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About BlueMoon

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    Can Spell Comanche

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    Male
  • Location
    Deltona
  • Interests
    Cars/Trucks(Collector/antique), Firearms/Range practice, Harley Davidsons, Just celebrated 50 yrs riding(1st was a Cushman Eagle), but can no longer ride due to injury and trying to hybridize my Orchids

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    Grins69

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  1. Howdy again, I found this on another jeep site, it may help us on trouble shooting: I see that no one has offered-up the Distributor's sync sensor as a place to look -- I'll detail a few tips below -- The Sync sensor is used in combination with the CPS to determine just which piston is at TDC (the CPS can only show crank position and #1 and #6 are at TDC at the same time, one on compression and the other at exhaust)... If the data from the DistSync is ambigous or missing, the ECU will try to fire the #1 cylinder, every other time the TDC mark flys past the CPS - if the engine doesn't start, then it'll skip one of the TDC instances and try to fire #1 180* off from where it started before... This could be part of why you're getting good starts & bad starts. The Dist Sync signal does have a tendancy to drop it's ground reference and become unpredictable -- Leme type some thoughts: So the sync connector out of the dist is a round 3-position connector -- Pin A = Black - Ground - (chassis gound, both in the dist and for the harness - you can unplug the connector to check both grounds seperately - it's OK to add a chassis ground to this line) Pin B = Blue - Output - (to pin C16 of the ECU - should show about 5 volts static between Pin-B and Pin-C - connected to harness, key on, engine off) Pin C = Gray - Supply (should be about 7VDC from pin C5 of the ECU) While you're looking at the static voltage between Pin-B and Pin-C, if you crank the engine, you should be able to see the voltage fluctuate as the sensor rotates (qty=1 wiggle per rev, so it's not that impressive) I seem to remember the gray wire on Pin-C having a stripe as well... -- was just looking at a dist yesterday, but can't remember much more
  2. Sorry, wanted to add my cps resistance reads 232 on cold engine as I am unable to get it running and manual states 200+/-75 ohms on hot engine.
  3. Howdy all, I'm not holding my breath but, I finally had a reasonably good day and borrowed a fuel pressure gauge for my "only runs on starter fluid" MJ. Actually, due to the results of my first test, I drove back to my napa store and swapped the first for another one. Same results. The meter didn't even budge. Nada Nil Zip...no pressure from my fuel pump. As before when I pressed the valve in the fuel port, gas was present. It just wasn't present with pressure. So, I'm talking with a friend about my Jeep's problems and ordering a new pump and filter and he says he happens to have a fuel pump out of a '96 Cherokee sitting at his home. QUESTION #1: Good folks that you all are here, I pose the question to you. Will this fuel pump work in my rig? Thanks, many thanks to all of you for any and all of your help on this problem of mine. As soon as I able able I will get my ride back "off-road again". Kinda a twist to the old song. And then.... I can start tackling the other issues, but at least she'll run agin.. QUESTION #2: Will some please CONFIRM if spark is confirmed to be present and our "only runs on starter fluid" MJs fuel pumps have no pressure the cps being at fault can be ruled out?
  4. Howdy all, I'm not holding my breath but, I finally had a reasonably good day and borrowed a fuel pressure gauge for my "only runs on starter fluid" MJ. Actually, due to the results of my first test, I drove back to my napa store and swapped the first for another one. Same results. The meter didn't even budge. Nada Nil Zip...no pressure from my fuel pump. As before when I pressed the valve in the fuel port, gas was present. It just wasn't present with pressure. So, I'm talking with a friend about my Jeep's problems and ordering a new pump and filter and he says he happens to have a fuel pump out of a '96 Cherokee sitting at his home. Good folks that you all are here, I pose the question to you. Will this fuel pump work in my rig? Thanks, many thanks to all of you for any and all of your help on this problem of mine. As soon as I able able I will get my ride back "off-road again". Kinda a twist to the old song. And then.... I can start tackling the other issues, but at least she'll run agin.. _________________
  5. Howdy all, I'm not holding my breath but, I finally had a reasonably good day and borrowed a fuel pressure gauge for my "only runs on starter fluid" MJ. Actually, due to the results of my first test, I drove back to my napa store and swapped the first for another one. Same results. The meter didn't even budge. Nada Nil Zip...no pressure from my fuel pump. As before when I pressed the valve in the fuel port, gas was present. It just wasn't present with pressure. So, I'm talking with a friend about my Jeep's problems and ordering a new pump and filter and he says he happens to have a fuel pump out of a '96 Cherokee sitting at his home. Good folks that you all are here, I pose the question to you. Will this fuel pump work in my rig? Thanks, many thanks to all of you for any and all of your help on this problem of mine. As soon as I able able I will get my ride back "off-road again". Kinda a twist to the old song. And then.... I can start tackling the other issues, but at least she'll run agin..
  6. Thanks Paradise, You say you have added relays as well,but does your MJ have any problems?
  7. I took another look at your post with pic of relays and yes it helped greatly,,,THX guess some clarification is needed though, I was not counting the starter relay in with the other ones, I have five relays (cubed in shape) and the starter relay...ok? the fifth (cubed relay) looks to be an add-on as it is clip wired into the wiring harness and from the first relay closest to the windshield. Wish I could figure out how to get my pic from photobucket on here, that would help I am sure, Too tired to go on riht now, been on one of my many insomnia nights Thx agn Paradise and later gator Ron
  8. OK Paradise....normally my mj has five relays?...sorry was under the impression my year mj should only have four. four are all in a row, but the fifth is spliced from the first relay and also has splices into portions of the wiring harness. wondering if this could be the root of all my gremlins with my mj. thx 4 responding Paradise
  9. ok...I have a pic of my relay messon photobucket, But my brain to too thick I reckon to add it here! funny I thought I was fairly intelligent.
  10. sorry, that didn't work...gonna look at the help site here
  11. Let me see if this works, it's a pic of my FIVE relays and the wire splices
  12. That brings up the question...how does one tell a renix from a 4.0L ? I have an '87 pioneer with auto trans and the "metal emblem" on the tailgate says 4.0L.
  13. BlueMoon

    Florida?

    Sorry for the late comeback Rav. Too bad we didn't know then huh? I'm headed to Deadland (that's what most call Deland...lol) in the next few days to look at another jeep for a parts car. Always good to get a MJ for free...best of luck on your mj. Mine is down at the moment and can't work on it...I'm old and beatup and havin one of those weeks. c u on th flip side Ron
  14. Question guys... My exhaust manny is badly cracked and found this on craigslist. Would this fit mine and is it worth the price? Thx one and all http://orlando.craigslist.org/pts/2267734705.html
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