NISSAN SUNNY 2002 unexpectedly shut

I have been having this same problem. It's very scary. As I research on the internet, I am finding MANY of these same complaints. My car is in the shop right now (today) getting the crankshaft sensor replaced and a new battery. About 2 weeks ago, I had the camshaft sensor replaced (was told that would solve the problem.) I am praying that today's repairs make a difference. My car will cut off completely at stop signs and stop lights and often will just cut off while I'm driving and I lose control of the steering. I have almost gotten hit by other cars. I throw it into neutral quickly and start it while it's still moving. Ridiculous. Nissan really needs to make this right.