We need to find out if there are codes. If there are codes then that could point us in the right direction. If there are no codes then this could be multiple things. We need to start with inspecting a number of sensors/actuators. Specifically, the EGR valve. If this is stuck open then it will cause your issue. So let's start with this info and go from there.
Here is a guide that goes over more detail about stalling:
https://www.2carpros.com/articles/engine-stalls
Let me know if there are codes and we can go from there. Thanks
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Thursday, January 23rd, 2020 AT 6:36 PM