Oldsmobile/Buick Repair: 89 buick century fueling promblem, oil pressure switch, crank sensor

Question
car starts up but then shots off. Tested fuel pump pressure and oil pressure switch, all is ok. Talked to a technician from buick and they mentioned could be computer or fuel injector problem. 1st question is where is computer located on this car and 2nd is what else could be causing fuel to be cut off.  

Answer
Hello Andrew,
If the pressure stays up till after it dies, then fuel pump is ok.
Possibly lack of injector operation. Crank sensor signal to the ecm is needed for injection.
The ECM is usually behind the right kick panel, or under the seat, but they are pretty dependable, so I would be checking for injector pulse.

Any possibility that loss of spark might be the problem?

Van