Yep, in the Write-Up section
https://www.cherokeeforum.com/f51/testing-cps-5563/

 

Any chance I can change my 01 xj 's California emissions to federal emissions? I live in pa and have no plans to move to California lol. What would I need to do?

 

I believe you can't since it came from the factory like that iirc

 

My understanding is that it's in a gray area. EPA says you can't remove or modify any emissions equipment in your vehicle, but California's CARB program operates under its own regulations, independent of the EPA.

I would think as long as you modify it in a manner that it complies with federal regs (i.e.- Convert to an XJ 49-state legal system), it would be legal. Again, that's just my understanding of the matter.

 

Yeah. I was thinking of changing the exhaust manifold and the down pipe with federal approved cat convertor, and change the PCM from a 99 xj. So it won't show cel for missing oxygen sensors?

 

With the age of the vehicle, i wouldnt think that is an issue since your not eliminating the cats altogether. Do you do emissions in your area or just safety

 

That seems like it'd be okay to me, but I am not the law. (Heh... Judge Dredd would never say that)

I know PA is incredibly ****-ish with vehicle laws, so you may want to contact the DMV for guidance. Honestly, I don't think they'd ever notice if you do a complete swap, but it still may not be legal.

 

I see it as, it may nite be federally legal however it will still be emissions safe however i don't know if they do emissions test him where the would know it was suppose to be cali emissions and would fail smog due to it. So yea def ask the DMV him they feel

 

You know it....here it is again...

 

The rear tires on my '01 Sport are on about an inch narrower track than the fronts. Is that normal? If not, what could be amiss? It is original equipment except for a 2" lift and bigger tires. I apologize if that question has been asked, I'm on my phone and it's hard to search. Thanks. KW

 

That is standard. The rear axle is slightly narrower than the front axle. I've heard it has to do with tracking in a straight line and preventing wander.

 

I posted last night about a 97 jeep Cherokee what happened to it?

 

Thanks.

 

+1 to this. It sounds reasonable but removing the manifold, the cats that go with it, and the PCM that adjusts fuel mixture based on catalyst health, is, by the letter of the law, verboten.

I would check with your local DMV types.

 

Swaps between stock axles, while heavy, are trivial compared to regearing; much cheaper and more convenient. 3.55:1 axles are under most XJs out there so very easy to find: My rear axle cost me $80 and some gas. I threw new wheel seals and bearings in, ($25?) cleaned and painted it (supplies $20 + time). Also took the opportunity to upgrade to disc brakes. My front cost some gas to go pick it up (free). I put in new hubs and all seals ($150?), swapped my axle shafts with new U joints already in 'em ($25), and of course cleaned and painted. Outside of the diffs it's almost like two new axles for less than the cost of doing gears... and not replacing or refreshing anything else.

Also worth mentioning I have no garage and the XJ is my daily driver so downtime was just to swap them. The front axle sucked on account of getting the control arms bolted up, I did need a hand for that.