If the car stalling is happening only when you come to a stop then it's likely a problem with the EGR valve.
When your EGR valve becomes clogged, dirty, or defective it can cause your car to stall especially when the vehicle is coming to a stop.
A faulty EGR valve can also cause problems such as idling erratically, or sputtering, depending on whether it is stuck open or closed.
Have the EGR valve checked out or replaced and if you go to a mechanic let the mechanic know that the car is stalling when it comes to a stop and they'll usually know exactly what is wrong.
Another problem that can cause the car to stall when it comes to a stop is a faulty idle air control actuator.
The idle air control actuator controls the engines RPMs when it is idling.
The actuator receives information from the electronic control unit (ECU) so it knows at what RPM to keep the engine for a smooth and safe idle.
When the actuator malfunctions, the engine gets no signal for idling speed and stops working.
It can also be caused by faulty oxygen sensor or mass air flow sensor.
The oxygen sensors and mass air flow sensor determine how much oxygen is entering the fuel stream, and helps the vehicle adjust the air-to-fuel ratio.
If there is too much or too little oxygen, your vehicle will not have optimal power.
Just like with low fuel pressure, the car will continue to operate at driving speeds, but this suboptimal power won’t be able to fuel the vehicle as it slows down.
Low fuel pressure faulty or clogged fuel injectors can also be another cause of a car stalling when coming to a stop.
However it's most likely a bad EGR valve.