Volvo Repair: stalling, fuel injection system, pump fuel

Question
I drive a '94 850 station wagon (5 speed), with impeccable repair records.  Just recently it started stalling while i was driving.  I would just pull over, then turn the car off and on again.  I could then resume driving.  Now, i just dump the clutch and jump start it.  I checked the oil (it was low), and put more in.  I think the reason for stalling while I'm moving is either the fuel filter or fuel pump.  Please help me!  Is my guess right?

Answer
It depends. If you can start car up right away without prolonged cranking means it probably is more likely electrical. If it cranks for awhile before starting, it could be restricted fuel filter. I'd look into the electrical circuit for the fuel pump/ fuel injection system. you'll need a wiring diagram for this.