mercury 240 hp efi just works on low or high speed

[carlosparham]

hi, i own a sea doo challenger 2000, model 2002 with a mercury efi 240 hp, the engine run great untill this summer when i try to accelerate about middle range, the engine stop, it only runs in low or very high speed, if i put the trotle in the middle the engine dies and it take a while to start again, also, i don't know if is related but all the gauges stoped working at the same time, i cheked all the fuses and they are ok, please help

 

[rickyray2000]

hi, i own a sea doo challenger 2000, model 2002 with a mercury efi 240 hp, the engine run great untill this summer when i try to accelerate about middle range, the engine stop, it only runs in low or very high speed, if i put the trotle in the middle the engine dies and it take a while to start again, also, i don't know if is related but all the gauges stoped working at the same time, i cheked all the fuses and they are ok, please help

Carlos, did you ever fix this? I have the same problem and cant seem to find anything about it on the forum.
Thanks
Ricky