hey there we have a 05 6L with all the same issues beside the water in fuel. it has no codes after the intector buzz and it is missing all the glow plugs are fine and it has little to no throttle responce. before we did the egr bypass it would be a son of a bitch to start and it would run rough and then would just die and it would only stay running if we kept the starter ingaged but after a couple mins of sitting it would start back up but die 30 seconds later.we just did an egr by pass and after that it will run for about 2 minutes and then die but it will start right back up. both the fuel filters are good.