4.0 MPFI harness help (XJ motor in a Scout II)

[N2IHC@KS]

Hello,

I was told that this forum has many folks who are very helpful and that I can possibly get my questions answered here.

I am doing a 4.0 head and MPFI conversion, on a 1972 Scout AMC 4.2L. I have the conversion part down but need a little assistance on the harness. I have photos showing the harness and every connector, the parts I think I have right and the parts I have no clue about.

I did an adv search and came up short. Is this the right part of the forum to post such questions along with my photos? Also, I am doing the entire build of the vehicle from the frame up on you tube. When I do the head mod episode I will be doing a step by step of the engine harness swap. So, hopefully all these questions will help other Jeep and Scout folks in the future.

Info: Motor is from a 1994 jeep xj Cherokee. I have the entire harness and the computer, plus sensors ect.

Thanks for you input.

PS please excuse my bad spelling and punctuation...even in the AF I turned wrenches not words. =)

N2IHC
Kansas, USA
Ret. USAF

 

[KSXJ]

Glad to see you found the site. Modified might have been a better section, but I am sure the mods will move it if they feel so.... You will need to host your photos on photobucket and put the link between the

 

[Heap O' Jeep]

Glad to see you found the site. Modified might have been a better section, but I am sure the mods will move it if they feel so.... You will need to host your photos on photobucket and put the link between the tags just like trailkrawlers[/QUOTE]

Ditto, you're in knowledgeable hands now! :sunshine:

 

[N2IHC@KS]

Okay here goes:

Plan is to make this a step by step that shows every single part of the mod from start to turn key so that anyone can do it.

But, before I can start to put the videos together I must first learn how to do it myself. So I am on a fact finding mission and I would like to ask y'all a few questions...

Here is the mess I started out with:

A. I think I have this one right, but may have to go Manual valve body because I don't think there is a way to make my mech link kick down work.:

B. Think I have this one right as well:

C. here I have:
Plug1:
Plug 2:
Plug 3:
Part 1:
to ID.

D. White Plug:
Black Plug:
Blue all weather plug:
and 3 mystery wires:
to ID.

E. This seems easy enough but I don't want to assume.

F. 99.9% sure I have this right:

G. My guess is this is "IN" or "return" and the one on the water pump is out to my heater core.

H. More plugs to ID here:

I. This right?

J. If this is right...it's a sensor that reports the engine temperature to the ECM

K. I will have to go looking for the broken part unless you can get them new for cheap.

L. Ouch time...Oh good grief I am gona have to look for large weather proof connectors I think. Yea I did this when we were taking it out. I mistook a part in the engine comp for the computer...we later realized the error in my logic.

Plan to try and make this work with my 258ci. Shouldn't be to hard...I hope.

 

[N2IHC@KS]

Part 2

More Wires cut... this was the big no no.

Coil and some grounds to work out.

I basically plan to lay this harness down, clean it up and then start removing the stuff I don't need.

Well that's about it for now. Thanks for any help you folks can give.

EDIT: Plz excuse the low rez. Had wifes camera for the week and did not realize it was set to such a low rez.

EDIT 2: I also Have the right year factory repair manual and wire diagrams for the XJ so naming these plugs will help me ID them better. I am a very kinetic learner always have been. Show me once or twice and I have that skill for life. heh, I still have dreams about removing and replacing landing gear on KC-135's

N2IHC

 

[N2IHC@KS]

Hum maybe this is in the wrong forum area. Surely someone knows this stuff.

 

[Heap O' Jeep]

Needs to be copied and pasted into OEM or Modified tech, much more traffic there

 

[N2IHC@KS]

K I will do that. Moved here: http://naxja.org/forum/showthread.php?p=245356199#post245356199