The resistance of the MPROP valve is within specification - 3 Ohm is fine.
Lets make some assumption regarding the DTC that are generated for either low or high rail pressure. Lets assume that it makes to high rail pressure and thats why the engine is cutting out.
I know it´s a little theoretical discussion and its not the best point of view to attack this problem with - I would rather base my diagnostic pathway on facts and real readings from alot of different tools. But as we all know its not always possible to do that so we must improvise or think out the box.
My approach to your problem would be to think of what could cause a higher rail pressure than normal and one valve which that has a big influence on the rail pressure are the DRV valve. I would meassure the duty cycle on the signal wire that the DRV valve are connected to as a starting point.
I know it not easy and especially not if the problem are temporary, but you must collect some real readings where you can make some diagnostic steps based on your knowledge and your observations you have made.
It´s not much that a can contribute with at this stage. I sure hope you come to the bottom of this problem.