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help w/ my pony swap

Discussion in 'Early CJ5 and CJ6 Tech' started by bkd, Apr 6, 2009.

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  1. bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    I've got the 5.0 installed and all the wiring between the original harness and the 5.0 computer harness installed. I'm getting the correct readings at the coil, but no spark at the dizzy. The car that the 5.0 came from ran great before it was pulled. I'm getting correct readings from the TFI plug in as well. I can hear the computer relay switching on. I've checked all the grounds, retraced all the wiring.....AAARRRRRGGGGGGGGGGHHHH!!!!!!
    Is there any way for a laymen to check the ign module and/or the dizzy pickup short of purchasing new componets?
    Thanks, Jim
     
    bkd, Apr 6, 2009
    #1
  2. Patrick

    Patrick Super Moderator Staff Member

    I have a very simple module tester in my box at work. Just uses clip leads and a 9V battery. I wish I could fax it to ya.;)
     
    Patrick, Apr 6, 2009
    #2
  3. bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    wonder if Napa has something I could rent/borrow ?,,,,hmmm
     
    bkd, Apr 6, 2009
    #3
  4. Patrick

    Patrick Super Moderator Staff Member

    Might check with some of your local shops. Not sure about FLAPS, they'd probably rather just sell you a module.
     
    Patrick, Apr 6, 2009
    #4
  5. Patrick

    Patrick Super Moderator Staff Member

    OTOH, you could buy a module, and if your old one turns out to be OK, you'd have a spare to carry.

    Oh, if you hadn't guessed, right now my money is on the module.:D
     
    Patrick, Apr 6, 2009
    #5
  6. bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    that might work....Napa lists several modules from inexpensive ($40) to $165....think the $40 unit would be alright?
     
    bkd, Apr 6, 2009
    #6
  7. Patrick

    Patrick Super Moderator Staff Member

    Prolly. I'm not sure why they have a "variety".
     
    Patrick, Apr 6, 2009
    #7
  8. BlueFlu

    BlueFlu past owner of some ecj5's

    :smash:
    :lurk:
    Is it runnin yet?? :toetap:


    Looking fwd to pics of the swap.
     
    BlueFlu, Apr 6, 2009
    #8
  9. BlueFlu

    BlueFlu past owner of some ecj5's

    When I werked at the "O'R...." we had a differant levels of stuff like that. Depended on who made it, ie Bosch etc
     
    BlueFlu, Apr 6, 2009
    #9
  10. Patrick

    Patrick Super Moderator Staff Member

    I understand that part. But, is the more ex$pensive one really better?
     
    Patrick, Apr 6, 2009
    #10
  11. BlueFlu

    BlueFlu past owner of some ecj5's

    On some things I'd say yes, not sure on the modu. Brakes are the biggie.
    You know that some folks only want brand X or nothing. The FLAPS mark stuff like that up huge.

    Guees it boils down to this, would you trust Fly By Night part or a known name like Motorcraft, Bosch, Goodwrench, Mopar etc. Even though most stuff is made at the same plant diff QC.
     
    Last edited: Apr 6, 2009
    BlueFlu, Apr 6, 2009
    #11
  12. Patrick

    Patrick Super Moderator Staff Member

    There again, i know about most parts.;)
    Not sure about modules tho.
     
    Patrick, Apr 7, 2009
    #12
  13. BlueFlu

    BlueFlu past owner of some ecj5's

    Ya better know about parts. R)

    Wish I knew the answer on the module, for a test one I'd spring for the basement price.
    Like you said if it is not it he has a spare.
     
    BlueFlu, Apr 7, 2009
    #13
  14. double R

    double R Member

    try your local autozone...the one near my house will test ign modules...
     
    double R, Apr 7, 2009
    #14
  15. willys59cj5

    willys59cj5 Sponsor

    I had an 85 ford with an EFI 302. I can't remember where I got the info, but I had values for each pin on the module and used a regular old voltmeter. My module was bad and after replacing it with a $40 one from Kragen...she purred like a kitten.
     
    willys59cj5, Apr 7, 2009
    #15
  16. kaiser_willys

    kaiser_willys Well-Known Member

    computer didnt come out of a vehicle with antitheft controll did it,IE chiped key? if so there may be your problem
     
    kaiser_willys, Apr 7, 2009
    #16
  17. Patrick

    Patrick Super Moderator Staff Member

    I don't think it would turn over, or even have power at the coil. Or injector pulse.
     
    Patrick, Apr 7, 2009
    #17
  18. bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    tested the ign. module....came back good
    have them installing a dizzy stator/pickup right now
    I'm beginning to think I may need professional help ( I know I know R))
     
    bkd, Apr 7, 2009
    #18
  19. Patrick

    Patrick Super Moderator Staff Member

    That should have set a code if the pickup was bad. (no PIP input)
    Did you check codes?

    edit- Profile Ignition Pickup
     
    Patrick, Apr 7, 2009
    #19
  20. bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    no I took the dist. out and took it into Napa.........haven't got a code reader, guess I can see what I can scrounge up :)
    Jim S.
     
    bkd, Apr 7, 2009
    #20
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