Could be many things. But some things to check/replace might be...
-fuel filter
-fuel pressure
-TPS
-IAC
Probably an alternator.
Check the torque converter lock-up solenoid. Disconnect it and if the problem goes away it is defective. You can drive the car with it disconnected but it will get poor mileage.
put more in or get a new car
If car is coughing and stalls out until you drive whats the problem.
because your car has some problems i think you should buy another one :)
you need a new cam positioning sensor installed
Check for a major vacuum leak.
replace the alternator
you could put 1 car in each stall.... That would be logical
If your Volvo is an automatic transmission try changing the fuel filter.
check odb codes and check o2 sen.
If you mean each time you engage car in any gear forward or reverse & it immediately stalls - you have a bad torque converter. Start engine, put foot on brake, put car in NEUTRAL, if it DOES NOT stall, but it does stall if you repeat this test when you put car in drive or reverse = bad torque converter - It's called a "stall test"