Just got back from Canada. Sled (600X SDI) ran great for 4 days then on the final day, started bogging and cutting out at anything over 1/2 throttle. Revs up to 7000rpm fine but after that no good. Checked all fuses. Thinking maybe the high speed injectors are not kicking in? One more thing that happened that same morning. Had no juice when I hit the start button. Shook one of the relays and it got power again and started right up. First time I'm having problems. Have about 3000 problem free miles on the sled. Any help would be appreciated.