Popping sound when i hit a bump 97 jeep wrangler had been off road when it started

Why would hitting a bump have anything to do with a computer?

Vehicles hit bumps on every road trip

Computer is a solid state board,no moving parts

sounds like rear end is coming apart
google wrangler forums and post there

Could be a faulty connection with the battery cables, a bad ground, or any number of things. What do you have to do to get it started again ??

I would start by checking all the fuses and relays under the hood , you can have one or more fuse or relay disconected or loose from the big bump
also go threw chack all electral conections, one or more might have come loose
it would be a good idea to go threw all fuses and conections unplug and plug back in.
Let me know if we need to dig deeper into it but i think you will find a loose conection

more than likely a broken belt in tire but you mite have a bad tie rod or tie rod end, if all that checks out ok than I would start looking at o/d in the trans

Check the wire that feeds voltage to your ignition system. Check any connectors or plug-ins on that wire. It sounds like you have a bad connection. I've had this happen before, including on my motorcycle! Hope this helps!

I had a similar problem with my 2000 Jeep TJ and I found the problem in the wiring harness under the hood.several wires were corroded and almost burnt off.If you remove the black tape which keeps the harness bundled together and if you see evidence of "green" type powder or "gook" it's most likely where the wires have faulted.

Hay I would check your sway bar in the front .The bal may have came out of the seat located under front wheel well. Also they could be just loose. Check by rocking your jeep side to side .

Why it is random I can't guess, but what you describe sounds like ignition timing change perhaps from a worn distributor. If you own or can borrow a timing light to see if the timing is jumping around, pulling the distributor can be avoided if the timing checks out as steady.   

If you pull it, mark EVERYTHING first(!) and inspect the drive end of it and its seat to see if there is any excessive wear to be seen.

check fuel pressure and check exhaust for leaks. exhaust leaks caqn play with the o2 sensor readings