It may be the o2sensor is going bad,occasionally not going into open loop.Take it somewhere and have a scanner put on it to find out for sure.I dont know for sure but if it has a fuel pump ballast check it also.I'm sure someone here knows for sure if it has one.One thing is for sure though,before dropping more money than nessesary into it have it hooked to a scanner.That will tell you what is going on with it for sure.

out of all the jeeps in this town the d**n gremlin had to invade mine

I've done so much,with so little for so long i can practicly do anything with nothing