I have an 01 2500 with 113000 miles we replaced the lift pump and inj pump about 4000 miles ago. The other day the truck lost all power and started blowing a lot of white smoke. I did change the fuel filter and the truck ran about 5 miles and then died again. The truck now will not start and I'm getting codes P1693 and P0602. Any suggestion would be great I'm getting a litte tired of working on this thing all the time.