on the way out to the trail my buddies yj was running fine. we were on the highway at about 65mph when all of a sudden 2 or3 loud back fires and the thing shuts down. i checked spark and fuel. has both. any ideas?

 

CPS

Was the road wet or damp?

If it was than more than likely the CPS has a crack in it..

 

no was dry today

 

Than bad gas would be my next thought.

 

when it cranks it just dosent sound right... like it jumped time or something. i would think even with bad gas it would still try to start

 

it sounds like timing to me,but cps and cam pos sensor can also cause it. yours not having a dist,it is possible chain slipped.

 

it has a distributor

 

Make sure distributor/rotor is turning while you crank it. I've seen the drive shear off before.

 

ouch... ok will do

 

ok this is what my freind found