98 wrangler engine sputters

I have a 98 wrangler with a 4cyl it has started this week sputtering going down the road. It does not do it all the time just every once in a while. Most of the time I am running about 65 down the interstate and it will act like it is out of gas the tack will go to 0 it will only last a couple of seconds. I can let off the gas and it will run okay.

Just to let you know..I had the same problem, although it wasn't always going that fast for speed. I just a full tune-up and they had to replace the o2 censor. Works great now.