I have a 95 4 cyl.wrangler always ran good. I went mudding and it stalled, I started it up went 20 ft and stalled again to the point where It wouldnt start at all. When I turn it over the rpm guage jumps all over the place and it starts sometimes but runs rough and backfires. This is what I have done checked timing its good, getting spark on coil and all 4 cyl. has fule presure, put new plugs in it ( oil smells like gas) Please help I have a annuel jeep run this weekend and dont want to be a passanger.