THERE SHOULD BE AN ACESS HOLE IN THE TRUNK TO GET TO THE FUEL PUMP THAT IS LOCATED IN THE TRUNK.REMOVE FUEL PUMP AND REPLACE WITH NEW PUMP.
in the rear on the left side
The fuel pump relay is behind the fuse box on the passenger side in the glove box.
The SAAB will have an oil sump, specifically the oil pan collection for the engine oil and the fuel sump, the collection area for the fuel pump to pull from.
It is under the back seat in the center
Under the rear seat - left side
Remove fuel tank
drop the gas tank
check this site out .http://www.thesaabsite.com/Saab%20900-93%20fuel%20pump%20replacement.html
Change the fuel filter first. If that doesn't help, change the fuel pump.
remove glove box and remove fuse box screws
The obvious place to start is the fuel filter. Is it clogged? I presume this car has a 2.0-liter, 16-valve engine. A Saab 900 16-valve shop manual will provide a list of possible causes and their solutions.
There is an access door in the trunk for the fuel pump. You can change it from there.