Does anyone have any recommendations of what I can do to fix this problem? (2003 Suzuki Aerio, 63000 miles, 3.2 Liter, Four Cylinder engine)

My 2003 Suzuki Aerio has been shutting off after running for just a couple of minutes (it seems to putter a bit and then just shut off).

I noticed that the Check Engine light was on, and I was able to pull two codes off of the Engine Computer.

Those codes are: P0340 - "Camshaft position circuit malfunction"

AND

P1709 - "Engine coolant temp sensor malfunction"

I am not sure what any of that means, or what I can do next to go about repairing it. Any help is appreciated, thanks!

Jason