That got it.
And I thank you for your help.
I have learned a LOT from ya'll on this site.

I think I found it.
17262

This is it.

Ok, I may have an issue with my computer. The "high speed cooling fan relay control" wire from the computer is not turning the fan on. It's wire # 33 in the green plug. It should ground the relay and...

Is it really that simple? So if I put all 6 cylinders on bank 1 it won't need input from bank 2 O2 sensors? I like it!!

Ok so I found the switch you're referring to. If I set it to non...

So I got the O2 sensor hooked up today and on the short test run I made it really helped it. I'll be driving it about 60 miles tomorrow, so we'll see how it does.
I'm running one O2 with it hooked...

I may try this but I think my issue is that the jeep distributor is more that 100 deg out from where it should be.
I pulled it apart last night and moved the reluctor to where I think it should be....

Well I've had to change up the distributor. When I installed it I didn't think about where in the crank rotation the sink signal was sent to the computer. I am getting a sink error.
I have no way to...

Dave this system runs two 02 sensors. But the manifold only has one bung in it. Do you think I can get away with hooking both inputs to one 02 sensor?
I just don't want to have to pull the exhaust...

Just had to change the wire plug. I did the same with the TPS and the IAC plugged in and seams to be working.
I don't have the 02 sensors installed yet so it's running open loop.

I'm using the stock distributor from a 1996 Cherokee.

17201
17202

Well it runs pretty good for the first time I started it.


https://www.youtube.com/watch?v=wxlzG2TspuE

ericjon262 What program do you use to read/write to these pcms?

Thanks for sharing that with me.
That's a lot of info you put in that thread.
I'm actually using a P59 computer hardware #12583659. It came from a 2004 Astro van.
I'm just looking for anything...

So, I'll need to go through all the codes for the trans and turn each one off?

Now, see, I wouldn't have thought of that!!
Dave, I really do appreciate the advice. Like I've said before, I'm learning.

Just so you know I will be running a automatic trans, just not a GM trans. I'm keeping the Jeep auto that all it needs to shift is a TPS signal RPM and a speed signal. And I have those covered.

So I think I'm going to change what I'm going to run my Jeep engine on.
I went to the U pull it and found a 2004 Astro van with the 4.3L that had nothing missing from the wiring harness or sensors....

Thanks and I have a 6 circuit fuse box everything will run through.

Dave can you tell me what pcm wires I HAVE to have to run this thing as a stand alone?

I've found anywhere from 0.009" to 0.120" so 0.040" sounds like a good place to start.

Now I've got a lot of wiring to do.

I did my first full write with PCM Hammer, on the pcm I'm going to be...

A little more progress.
Can anyone tell me what the gap should be between the sensor and reluctor?

1711917120

Well I got the reluctor made and mounted today. Now if I can get the sensor mounted and lined up I'll start running wires.

1711717118

Thanks I found a piece of an old skid plate from a cj5 I used to have.
I think it'll work nicely.
So it needs to be magnetic.

Dave will the factory crank sensor pickup aluminum or just steel?