My car starts but then quickly stalls like it's not getting gas.

Hello Pata, here are a couple of things to check. Is there a security light flashing on the dashboard when trying to start the car? This could indicate a problem with the key of theft deterant system. Once you get the car started, will it stay started if you push down on the gas pedal? This would indicate a possible vacuum leak at idle. Look at the air cleaner for rubber lines that could have become dislodged, this is common because it is usually checked when the oil is changed. After that we need to check fuel pressure and scan for possible codes. Hope this helps