i had a very similar problem and as it turned out it was my cps, nothing looked wrong with it, it was just bad, also would suggest new iac ans tps while you are at it, they are cheap parts and have a lot to do with out the jeep runs.

as far as the fuel filter i dont know about other models but on my 93 it aint in the tank its in the pass side "frame" rail right near the vent tube for the rear diff

 

What one is the cps? Weve changed the iac and the tps already and which one is the ans? So far totally we have done: Cap, Rotor, Plugs, Wires, MAP sensor, TPS, IAC, and adjusted the TPS, Also we have checked the fuel pressure and its were its sapposed to be. Just to sum things up a bit.

 

88Chief,
Just wanted to say hi and letcha know that I have the exact same frustrating problem on my '95 XJ. If I come up with a silver bullet as a fix, I'll letcha know....I think O2 sensor is next on my list.

Regards,
A.R.

 

If you havent changed the crankshaft position sensor(cps), do so.

 

That better not be another 100 dollar part. I dont have the money to get one. Should i try to get on from the junkyard and try to test those before i buy a new one?

 

Wow, I just looked through this thread and not one person mentioned CPS. Thats insane.

If that does not fix it, stop trying until you can have a trusted mechanic look at it.

 

Can you please describe why it might be the CPS? What would a CPS malfunction do?

 

The CPS would cause it to run rough if its going bad, or also stall and other things. It controls fuel/air going into each cylinder in unison with the TPS.

 

Thank you.

 

How much is the cps? and could i go to the jy and grab a few and test those to see if its the problem?

 

Usually around $80, yea you can JY a few, Id grab about 3 though.

 

look harder next time,


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

there is a link to all the sensors, the cps is towards the bottom of the page

 

http://rustysoffroad.com/mm5/merchan..._Electrical_XJ

this one is only 30 granted there is shipping to pay but its the cheapest ive ever found

 

there is no "ans" that was a typo my bad it was supposed to be "and" i have a fractured hand so yea

 

My bad, apparently Im not the only one that skipped over it though.