Yup, I have spark, fuel pressure, and compression. Compression is a bit low, at 100, but I hope it will work its way up once it's running and rings and valves have a chance to seat.

I have the proper flexplate with the 12 holes, and the bolt pattern is offset so it can only bolt on one way. I have a new crank sensor also.

About the only thing left is that the PCM is grounding the coils at the wrong time. And unfortunately I can't hook up a timing light.

oh and by the way you might have an open recall on your jeep just stumbled across that as well might want to take it by a dealer to have them run your vin and double check i would have to put your vin in at the shop to know for sure. i will bring my computer to work tomorrow and ask some of the guys that have been there longer than me if they know anything you havent tried or maybe i missed in the service info and ill post what they say up here if i get a chance ill check on that recall for you too lol sorry i wasnt much help

Thanks for trying. I'm at my wits end here. Just went out to the garage and turned her over, she almost sounded like she was going to start. But she didn't. I'm going to try another compression test tomorrow, and put a fresh set of plugs in while i'm in there. I'm thinking I should have a leak down test done, but it should still fire the way it is as long as there's some compression. 100 psi should run.

all it says great diag right??!

Hah, if only it were that simple. As far as that diagram is concerned, the engine would be running right now. Maybe I'll find something today. Going on a week now that I've been chasing my tail with this.

but it does say low compression, i've seen one guy try this before but i dont really like the idea of it but it might work if you feel like giving it a try, pour a little oil in each cyl thru spark plug hole not to much and yea i dont like doing this but if you feel like trying it or wait til you have tried everything else, i have seen it work once or twice still dont like doing it

I'm going to try another compression test today.
I haven't seen it myself, but I've had a couple jeep buddies tell me that they've seen engines run on 80 psi. I put this engine together, took a 90k mile shortblock, dropped a HO head on it, new timing gears and chain, and new seals and gaskets. I probably should have had some machine work done as long as I was there, but I figured I'd be alright since the engine ran a couple years ago and only had 90k. I pulled the engine myself a few years back, so I know it ran and sounded good.
I didn't have the head checked out at all as it came from a running motor that developed a rod knock and never overheated.
I'm hoping that the rings and valves will work themselves back into shape once the motor starts running. It had 100 psi when I checked it before, and I'll do it again and see. I've heard that extended cranking in a no start situation can wash down the cylinder walls and lead to temporarily decreased compression. I might be experiencing that now. A couple drops of oil wouldn't hurt if I've washed all the oil out of the cylinders trying to start it.

ya thats baisicly the point of doing it but expect to be putting new plugs in it soon if ya try, cant hurt as long as you dont put too much it will just burn it off use a 10w/30 or 5w/30, it will work better

do some research on the CKP sensor, those might be different for the pre-2000 motors

also check while cranking if your CKP is responding as the flexplate rotates or no?

What is the casting # on the head? (Should be stamped top drivers side near valve cover edge) The exhaust ports are different on a 2000 head. (0331) casting. The previous year's heads (0630, 7160, etc ). I am assuming it is an 0331 if you have coil pack bolt holes. Just throwing things out there, you said it was an HO head.

see below the procedure to check the CKP:

Test#1 - Get a volt/ohm meter and set it to read 0 - 500 ohms. Unplug the cps and measure across the CPS connector's A & B leads. Your meter should show a CPS resistance of between 125 - 275 ohms. If it's out of that range by much; replace it. (* - Note: HO engines are measured from the B & C connectors and should have near zero ohms.)

Test#2 - You'll need a friend to help ya with this one.
Set your volt/ohm meter to read 0 - 5 AC volts or the closest AC Volts scale your meter has to this range. Measure across the CPS leads for voltage generated as your friend cranks the engine. (The engine can't fire up without the CPS connected but watch for moving parts just the same!) The meter should show .5 - .8 VAC when cranking. (That's between 1/2 and 1 volt AC.) If it's below .5vac, replace it.

you've to unplug the CPS for the test #2 as well.

source:
http://www.lunghd.com/Tech_Articles/...iagnostics.htm

I bought a new crank sensor, and I've tried both the old one and new one. The CKP is for a 2000 jeep. The flexplate is also for a 2000(which is the year of the Jeep). I have spark as well on both CKP's.
The head is a 7120 from a 94 HO. I had to make brackets for it. I've also got extra grounds on the coil rail to make sure that isn't the problem.
I think I've fried the starter from too much cranking. I knew better, I was just frustrated. I'll have to pull it and see what happened. I might have an extra starter sitting around.

did what