so I have a 2001 24 valve that it pulling these codes p0341, p1689, and p1690.
It will run fine for 10 to 20 min. then the rpm needle will drop kick back up and then the truck will die. I stop and it will fire back up but only for a few sec. then die again then it will not start for hours.

I have change cam sensor fuel filter lifter pump and relays. not sure where to go from here.