99 7.3 P1670 memory code

[kx50002]

I have a 99 7.3 with codes P0344 and P1670 in memory, it runs but sometimes stalls. When it stalls it's like I turned off the ignition, it restarts like nothing is wrong. It doesn't always do it, in fact I've driven it every day this week trying to fix it, but it doesn't stall on me.

Any ideas?

I replaced the cam sensor and IDM, tapped wiggled and jiggled the harness connectors, I still haven't been able to find anything.

Actually, it's a 6/98 build date. How do I move this to the 98 forum?