got my sled out for the lfirst time last weak, ran great didnt miss a beat, went to drive it the next day and started it and it started idleing really high then i would flick the throttle to see if it would change and it would go down then start runnin rough like it was on one cylinder then would die, restart it and it would run rough then die, would start it again and drive it around and it would seem to clear up at higher rpms and when the sled got warmer, changed the plugs and drove it around seemed ok but if i would just cruise around the yard and then try to accelerate hard it would cut out then cut back in, dont think it could be bad gass since it ran great the night before, sticky injector? or throttle position sensor, anybody have any ideas for me? my sled is a 2003 f7 efi thanx alot