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Unread 12-07-2010, 05:43 AM   #91
73Dart
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1989 YJ Wrangler 
 
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I have the factory service manuals at home. I will try to get you some pics in the next day or so.

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89 YJ with a 5.2l V8, 5 Speed ax-15, RC aals giving me 1.5" of lift plus 1" lift shackles giving me a total of 2.5" of lift, 31x10.5x15 A/T tires, no carpet, rinolined tub, Family style roll bar.

My motor swap thread
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Unread 12-08-2010, 11:21 AM   #92
bmgadg
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Quote:
Originally Posted by ratmonkey View Post
you can get the OBDII pin outs from some of the dodge forums. i had them on my puter, but seem to have misplaced them a bit.
I'm going OBDI, I have a computer and harness from a 95 Ram 2500 with manual trans.
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Unread 12-08-2010, 06:28 PM   #93
ratmonkey
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that computer should only have two connectors at the ecu not the three you were talking about. the black, gray, light gray are the colors and style for an obdii dodge box.
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'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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Unread 12-08-2010, 09:05 PM   #94
73Dart
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The manuals I have are obd2 so I wont be able to help you.
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89 YJ with a 5.2l V8, 5 Speed ax-15, RC aals giving me 1.5" of lift plus 1" lift shackles giving me a total of 2.5" of lift, 31x10.5x15 A/T tires, no carpet, rinolined tub, Family style roll bar.

My motor swap thread
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Unread 12-10-2010, 10:16 AM   #95
bmgadg
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Here are the connectors in question...




They are at the end of the wiring harness opposite the computer connector, and each has 10 pins. On the Ram truck I pulled the harness from they were plugged in right before the bulk head. I found them in the FSM, but it doesn't list the functions for the pins, just the circuit number. I have all the wires on the original YJ harness labeled, now I just have to figure out what the functions of the wires in these connectors are.
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Unread 12-11-2010, 10:34 PM   #96
bmgadg
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Spent the day tagging all the wires in those connectors. Used a combination of the FSM and physically tracing the wires back to their origin. I think that part is finally done!

Also started trying to sort out the wires in the jeep, what a mess! My 92 FSM doesn't have the nice connector pin out section like the 95 one does. I'm literally clueless as to what to do next... it's getting really frustrating! I'm not sure what to do at this point. :
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Unread 12-13-2010, 10:34 AM   #97
73Dart
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You could swap in a dash from a 87-91 then wire the sensors up to the individual gagues. Is your dash completly controlled by the computer, and do you need the VSS?
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89 YJ with a 5.2l V8, 5 Speed ax-15, RC aals giving me 1.5" of lift plus 1" lift shackles giving me a total of 2.5" of lift, 31x10.5x15 A/T tires, no carpet, rinolined tub, Family style roll bar.

My motor swap thread
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Unread 12-14-2010, 01:27 PM   #98
bmgadg
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Quote:
Originally Posted by 73Dart View Post
You could swap in a dash from a 87-91 then wire the sensors up to the individual gagues. Is your dash completly controlled by the computer, and do you need the VSS?
I'd like to keep the stock gauges and everything if possible. I started hacking out old wires, but I think I need to slow down and keep reading the FSM to get some idea of what to do next.
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Unread 12-14-2010, 08:23 PM   #99
73Dart
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I started with a carbed engine so I don't excatly know what you are going through. The van I pulled my motor out of still had the old analog gauges in the dash and the motor had two of everything. I used a wiring diagram but I never was convinced that it was correct. I took the dash out of the Jeep, and then used my multimeter to ohm out the wires from the back of the gauges to the engine compartment, but that only works if the gauges are not feed by the computer. Where was the renix computer mounted on the 4.0l Wranglers?
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89 YJ with a 5.2l V8, 5 Speed ax-15, RC aals giving me 1.5" of lift plus 1" lift shackles giving me a total of 2.5" of lift, 31x10.5x15 A/T tires, no carpet, rinolined tub, Family style roll bar.

My motor swap thread
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Unread 12-14-2010, 11:15 PM   #100
MoparFreak69
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I wish I could help, but my 90 Wrangler was a ton easier as far as wiring went to do the swap. I basically just had to wire 4 wires to the battery, hook up the key switch and then the analog gauges and that was pretty much all. I can't imagine there are too many more on the newer rigs though. The computer controlled guages will work with either PCM. You should pretty much have power going into the dash harness, gauges (still used analog oil/temp/etc. gauges even then). There will be key switch out to pcm, start (I wired directly to starter), and maybe a few more here and there, but a wiring diagram should show you them all. Just gotta take it bit by bit and it will fall together. If you post up a copy of the wiring diagram for your Heep and donor rig I will look it over and give you some help.
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90 YJ 5.2 Magnum, AX-15, 231 SYE'd
D44 front, welded/trussed AMC20HD rear. 4.56 gears soonish.
Western 6 lug aluminum wheels, with 35x12.50x15 Wrangler MTRs
[SIZE="5"][URL="http://www.jeepforum.com/forum/f22/myj-build-2-years-ago-today-1197236"]MYj Build[/URL][/SIZE]
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Unread 12-16-2010, 10:14 AM   #101
bmgadg
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Quote:
Originally Posted by MoparFreak69 View Post
I wish I could help, but my 90 Wrangler was a ton easier as far as wiring went to do the swap. I basically just had to wire 4 wires to the battery, hook up the key switch and then the analog gauges and that was pretty much all. I can't imagine there are too many more on the newer rigs though. The computer controlled guages will work with either PCM. You should pretty much have power going into the dash harness, gauges (still used analog oil/temp/etc. gauges even then). There will be key switch out to pcm, start (I wired directly to starter), and maybe a few more here and there, but a wiring diagram should show you them all. Just gotta take it bit by bit and it will fall together. If you post up a copy of the wiring diagram for your Heep and donor rig I will look it over and give you some help.
Thanks man, was hoping you would chime in on this! I'm gonna sit down with the FSM this weekend and try to break it down into manageable chunks. The diagrams are separated into circuits and spread over several pages, so there isn't a good way to post them up.

Thanks for all the help from everyone, I really appreciate it. Hope I can get something positive done this weekend that I can post about!

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Unread 12-16-2010, 03:17 PM   #102
PlatinumNiner
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Photo copy all the pages you need. Arange them in the order you need. Makes life much easier. You can also make little notes on the pages with out having to write in your FSM
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Unread 12-16-2010, 04:18 PM   #103
73Dart
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I did the same thing, plus I had them blown up and traced the circuits with colored pencils. It helped alot.
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89 YJ with a 5.2l V8, 5 Speed ax-15, RC aals giving me 1.5" of lift plus 1" lift shackles giving me a total of 2.5" of lift, 31x10.5x15 A/T tires, no carpet, rinolined tub, Family style roll bar.

My motor swap thread
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Unread 12-17-2010, 06:17 PM   #104
MoparFreak69
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What year did you say your donor harness/computer came from?
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90 YJ 5.2 Magnum, AX-15, 231 SYE'd
D44 front, welded/trussed AMC20HD rear. 4.56 gears soonish.
Western 6 lug aluminum wheels, with 35x12.50x15 Wrangler MTRs
[SIZE="5"][URL="http://www.jeepforum.com/forum/f22/myj-build-2-years-ago-today-1197236"]MYj Build[/URL][/SIZE]
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Unread 12-20-2010, 02:38 PM   #105
bmgadg
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Quote:
Originally Posted by MoparFreak69 View Post
What year did you say your donor harness/computer came from?
Computer is from a 95 Ram 2500 5.9 manual trans and the harness is from a 94 Ram 1500 5.2 manual trans. When I was identifying the wires at the end of the new harness I noticed several of them were cruise related, so could I just leave them disconnected without any issues?

I'm making a mental list of the electrical functions I need to address...

- Ignition / starting
- Power distribution
- Fuel delivery
- Gauges
- Alternator / charging

Anything else to add?
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