Ok I replaced the cap and rotor and now the jeep idles super rough and hardly revs. I noticed the cap says 90-93 Mine is an 88. So im not sure if they are different or what. But the thing runs horribly.Not like its the firing order but just not right.

 

please any ideas?

 

if it ran better before you put on the new parts, I would think that you put on the wrong parts or you put them on incorrectly. I would start over.

 

ok I did . Turns out I had the #5 and #3 wires switched. didn't think it would run at all like that but it did. All is well. It started raining So I am going to have to finish tomorrow. Still need to change the fuel and air filters. but its running smooth in the mean time.

 

Check the rotor and make sure you have the tab on it down in the hole that keeps it aligned.
Next recheck your firing order that you have the plug wires in the right order.

 

Check the wire's for being in the wrong spot (firing order is most likily wrong)

 

the order was wrong somehow i got them crossed even though I knew where they were supposed to be lol. Had a misfire in the old brain or something.