97 Wrangler has died.

Hello All. I have a 97 4.0 Wrangler that is giving us a fit. I parked it in the yard one day, and the next day it would not start. The gauges were all dead as well. It would turn over, but would not catch. I replaced the CPS, but this did not help.
So, I had it towed to a reputable shop. They decided it needed a new computer. The new computer did not fix the issue. They sent it back and got another. Still, it will not start. It has them stumped. I am beyond baffled.
Have any of you heard of such an issue?
It has 175k, but it looks and ran great.

 

Is it getting fuel?

 

As far as I know it is. The gauges don't work, so I think that is why they believe it is a computer. The problem is that even with a new computer it doesn't run. They are actually a reputable shop, but it has now been there a month.