Subject: 95 diamanti
Question:

starts then shuts down. suspect fuel pump loses power.

Answer: Rudy,
That's not too much information to go on, but when your car shuts off on it's own, there are 3 areas that need to be checked:
- Fuel system
- Ignition system
- Air intake system

It's also possible you have a timing problem, or your car's computer may be malfunctioning. Have those areas checked and I bet your problem will be in one of them.
Good luck!