my 1997 xj died while i was driving ive had to replace coil, crank sensor, and whole distributor and now it starts but runs rough the new distributor has new cap, rotor, and cam sensor. its also throwing the p1391 code for intermitant signal loss from cam/crank sensor any ideas?

 

Replace cam/crank sensor if you didn't get it from Jeep.

 

Also i was wondering if an engine out of a 1989 Cherokee xj will fit in my 1997 because i have an 89 that the tranny is bad in but the motor was fine i know that all the sensors are different and would have to swap them onto the donor motor but other than that will it work? Im just wondering so i know weather or not to keep it as a spare

 

I found some issues with the distributor that i just replaced so i exchanged it now it runs a little better but now i have a p0300 code for multiple cylinder misfire any ideas? could it still be a prob with crank sensor if it's not an OEM part?

 

I can't say from personal experience, but I have seen quite a lot of posts over the years saying that only Jeep seems to have the quality part we need for a CPS.

How are your plugs and wires?

 

Yes it should be mopar crank sensor

 

plugs are only a couple months old wires are a little older but are the heavy duty ones not just stock i didn't have a problem with a misfire untill it died that day. I should also make sure i didn't get one tooth off on the distributor when i installed it but the finger seemed to line right up to just a little bit past the #1 spot on the distributor on TDC

 

yeah i got the one i put in on ebay they have mopar ones on there now for like $54 bucks i'll have to get an actual mopar part. Arent they supposed to come with paper on the end to set gap?

 

So I changed out the crank sensor with a mopar part now it's running alright. No more non mopar sensors for me! I also made a removable pannel for accessing the crank sensor so it won't be so hard to get at in the future. It makes the replacement a lot more easy.

 

Hopefully you'll get 10 or more years out of the new one...
Aftermarket is just crap for this application..

 

i'm pleased my advice led you down the right path.

 

It's always the CPS...and even if not, it will be....eventually.

 

Also napa ignition coils are no good I'm on my second one in like 4 monthes

 

Some how i think that the coil voltage back fed to the computer because when my distributor broke it took the coil and computer out now all of it has been replaced and a new crank sensor