Jeep won't stay running (ignition maybe)

Old Rugged Crosser

Jim honestly, that is the worst rats nest of wiring I have ever seen and I have seen some bad ones. You are better off to strip it all out and start over. It is really not that hard to re-wire. It would be much easier to do that than to fight that mess. Just think what a mess it would be to break down on the trail and have to deal with that. I could probably give you instruction on the re-wire. Just leave all wires running through the firewall. Detach all wires out front and take off all that plastic wire protection. Do not cut anything coming through the firewall.

tufcj

I'm really lost when it comes to wiring. I would suggest picking up a Haynes or Chiltons manual that has wiring schematics in it before chopping the whole thing out. There is a guy on ebay who sells ones that are in color matching the wires. Bob tufcj

fifesjeep

I actually have the fold out wiring diagrams... I can snap some pics and upload them if that would help you.

rollbar

Larry,that is a old pic when I first laid out the harness. I will take a pic of the compartment. I would like to go to bare minimum but like Bob.........

rollbar

FIXed IT!

Checked the switch re/red white/blue = all work.

Then at the fire wall inside the Jeep I have power except to the red/white wire, looked at the TAC lead, hooked it up and the rest is history.

I never hooked up/plugged in the TAC lead under the dash !!!!!!!!!!!!!!!!!!!

Runs perfect.

Sorry to run you all around for something stupid like a connector but I guess we all learned something from this thread.

I will post pics later.

Thank you so much,
Jim

P.S. Going back out to fiddle w/it, I'll check back later.

rollbar

Ok, here is the video.

Oil Pressure:
60psi = cold

45psi = warm

24psi = hot

Still have to get the temp gauge & fuel gauge working.

Thank you all for your help.

My U-Tube video of her fired up:

http://www.youtube.com/watch?v=tQd0r7BnTHM

rollbar

Under dash pics:
Here is where the TAC was not hooked up:

Under dash pics:

Oops, I see I missed a sopt w/the U-POL Raptor

Engine compartment pics:

Old Rugged Crosser

rollbar;130269 wrote
Under dash pics:
Here is where the TAC was not hooked up:

Engine compartment pics:

[/QUOTE]

Jim,

I still can't feature why you need so much wiring. I am running the same motor as you are and I don't have that much wiring.

Here is some pic's of my engine compartment:

Mine is complete and will add nothing to it. How come so much difference?

rollbar

Larry, I used the I-6 harness and have yet to clean it up. not sure exactly how but I guess I can start at the ECM plug and work my way up the harness. At least she runs :)

msalaba

The most confusing part of a Jeep ignition system is the solenoid connections. The blue wire is the "start" position +12vdc. It both actuates the starter solenoid and sends a signal to the Duraspark module. The red/white coming off the solenoid supplies a full +12vdc to the coil while cranking. It serves no other function. The purpose was to bypass the resistor wire while cranking for an easier start. All other ignition power is supplied through the ignition switch. (Kinda like burning your candle at both ends) Here is a schematic for illustration: [ATTACH=CONFIG]62[/ATTACH]

rollbar

Thank you. I would really like to clean up the compartment.

Old Rugged Crosser

msalaba;130273 wrote
The most confusing part of a Jeep ignition system is the solenoid connections. The blue wire is the "start" position +12vdc. It both actuates the starter solenoid and sends a signal to the Duraspark module. The red/white coming off the solenoid supplies a full +12vdc to the coil while cranking. It serves no other function. The purpose was to bypass the resistor wire while cranking for an easier start. All other ignition power is supplied through the ignition switch. (Kinda like burning your candle at both ends)

Here is a schematic for illustration:

[ATTACH=CONFIG]62[/ATTACH]

Masalaba: This should be made a "sticky." It should be under Ignition Wiring-- "Duraspark".

Old Rugged Crosser

Jim, You should really make a copy of that diagram. I'm sure you will need it in the future. That is some great information. That was kind of Masalaba.

rollbar

Thanks Larry, I printed it.

msalaba

Your welcome!

rollbar

Yes Thank you. Sorry, I thought I thanked you as well. Thanks again, Jim

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