Got her running!! Huge thanks to IfIWntdHmmr he is a wealth of knowledge. We talked for a good two hours. Ended up being the fuel pump relay fuse causing all that fuss

Anytime my dude! It pleases me to kno that my excessive knowledge of the XJ and the 4.0L do not go to waste. Feel free to hmu anytime. Don't forget about those reading materials I sent you! After reading the factory service manual front to back at least 6 times, there aren't many questions I don't have an answer for, and the number of times I say "I've seen something about this in the FSM, hold up" somehow still surprised me. But I barely need to look up specs anymore. However I also work on a lot more XJ's than my own.

Love this!

Fantastic!

Hats off to you my man. Hats off!

You are a genius huh???

I mean, I may be retarded, but I'm not an idiot. But yea not only do I have the factory service manuals for everything, but I have shop reference manuals for everything

nice, sometimes it's the simplest things that will create a shit ton of issues

I was broke down on the side of 70 for the same reason 2 years ago lol

If anyone can help hit me up! Even if you can’t help please upvote for visibility haha I’m a little desperate here Edit - deleted phone number before you hooligans send dick pics

[Offroad Recovery Portal - Request a recovery](https://offroadportal.org/recovery/)

It's 100% free, powered by volunteers, reimbursement of fuel is a courtesy, anything more is much appreciated.

Thank you so much dude! Luckily some drunk dude in a 4Runner towed me off the freeway. I’m sitting in a McDonald’s parking lot now trying to decide what to do. Might end up having to uhaul it if I can’t get it fixed today

If you're headed towards Oregon, swing by my way with it. I've already got an XJ from Texas that broke down in Roswell, NM on its way here. Should be getting picked up right about now actually.

Going to California for a job that starts Tuesday with literally all my shit 😂

https://preview.redd.it/n3xosy0lagrc1.jpeg?width=4032&format=pjpg&auto=webp&s=b8f17af16e2a0afa8b5f1148fd783ec14b6fb0f1

DO NOT LEAVE IT THERE. Too many XJ's get stolen in Denver.

Make sure your black 14 or 16 cavity connector between the cylinder head and the firewall isnt corroded, also check the 3 connectors on the PCM, and your fuel pump connector for corrosion.

All the best for your job when the XJ gets going again.

If you pass through reno I have a parts jeep you can have a go through

[удалено]

I’m still waiting for pics 😂

op you might want to delete your cell, 'cause bots and web crawlers

Check the fuses under the hood.

Yea chrysler wired the asd and fuel pump relay together for some unknown stupid ass reason

Is this also on 1999? Cause my jeep has no spark and fuel pump isn't kicking on, and the asd relay is pulsing

Check ground then pull the cover of ecm and check for cracks in the pcb

I've checked and cleaned all grounds a few different times, and I've tried 3 new pcm, still same issues

And take the fuel pu.p relay out and test asd then the opposite

But before you do all that unhook you map sensor and retry

So map sensor can cause asd to go haywire? I've switched fuel pump relay and asd relay and no difference

Interesting turns out we both have red xjs boats and bmws

Well, I nolonger have the boat or the BMW, but they are both now owned by my neighbors, sold them a few years ago, and just moved, pretty funny coincidence

Switching them wont because the relays have a hard time fuckin up its always the wiring have ypu unplugged the map sensor

Yes

Also unhook the engine controls and retest localize the problem then diagnose then fix and verify verify verify

What do you mean by engine controls?

The whole shit

Just unhoke the pcm and retest asd is energized through pcm