Man I was really hoping that was the problem but I don't even have a port there on my Throttle body.

 

OK, the "throttle body" is not much more sophisticated than your can. It's plate just controls air into the intake via your foot. One exception, at idle with the plate closed the rubber nose of the IAC motor, (pintle) controls air for idle. The TB just controls air flow and has the TPS on there to tell the puter where your foot is. Old school, "choke" does not apply here since the fuel actually comes from the injectors controlled by the computer.

The 02 sensor is not your problem here. The puter will make it run on default settings if it's fubar, best as I understand. Of course you need to get your pipes hooked up, I'm not thinking that should keep it from running.

The MAP is supper crucial to run at all. If your foot opens the throttle plate, intake manifold vacuum plunges. That drop in intake vacuum tells the MAP to dump more fuel, (by making injector pulse with longer). The MAP needs to be good and have intake vacuum for it to work at all. That "rough" mix is then trimmed by the puter with knowledge of the engine temp and 02 sensor readings RPM ect and stuff.

I wouldn't mind a pic of the VC side of your TB. Also, you know how to jump your fuel pump relay, did you try that? I had high hopes that that would make it run......I'm not suggesting there is a problem with the fuel pump, I thought it sounded like it ran with the rail pressurized from cranking/starting, then the FPR lost ground when you went to run. Jump the darn relay and run it would you?

 

 

So guys, its over. We've done it. The reason why it wasnt working was because the ECU was shot. $40 later at the junkyard and she's running a plenty. I still need to button up a few things but i did some burnouts in the parking lot just to make sure.




Things to get:

-catalytic converter

-muffler

-u-joint for front drive shaft

-4WD gear selector bracket???

-And a bunch of cosmetic stuff




I am truly grateful for all of your help and motivation. I don't think I could have done it without you guys. You are the real MVPs.


Side Note:
Here is the video I watched that gave me a clue what the problem was.

 

What was your total? It'd be great for you to do one post at the end of this documented your steps and dates and costs with a total at the end. It be a nice conclusion.

 

Glad you got it going! always a great feeling when you can say I did it!!

 

Working on it. But in all I spent around $650-$700. My receipts are in a few places at the moment. 😅

 

Exactly right man. I'm going to get it registered and inspected this week.

 

Good to hear it is running - that made me smile. You had some tough challenges and a less than ideal "garage" space but you worked through the issues. Great accomplishment. I admire what you did.

 

This above X10

Congrats.

 

Woooooo!!! NICE JOB man!!!!!! So happy to hear you've got the old beast up and running again! It's a hell of an accomplishment and a heck of a lot of work.

Also thanks for the follow up reports as well. It's such a huge help to the rest of the XJ loving community and nice to know for all the folks here that have been following your progress.

You could get one of those "built not bought" bumper stickers - you've more than earned it!!

 

X2

Fun U tube clip! Really? Your 92 has an under dash ECM? I'd thought it would have an under hood PCM. (power control module), being post 90.

 

How did the inspection go?