Help with PT codes p0016 & p0339

[Tiltmfc]

Ok so this is how the story goes, yesterday driving around and car stalls I get it going again then she starts to stutter. Im like oh great bad gas. Then I remember the The three key on trick, you know turn the key three times to with out turning car on to get the codes?

I do the Key thing and I get the codes p0016 and po339. So P0016 is " Crank and can out of sync" and p0339 is Crank Shaft position sensor intermittent. so my question is here. is have anyone of you had this problem yet? is it a easy fix or should a mechanic do this? and info would help..

I also found this post about poo16 '04 PT GT stalling, out of the blue...