Djstylamix
Member
- Messages
- 12
- Reaction score
- 5
- Points
- 12
- Boat Make
- Scarab
- Year
- 2021
- Boat Model
- 165 ID
- Boat Length
- 16
Hello all,
I recently acquired a newish 165 300hp Rotax with 14 hours. The boat now has 25 hours on it. The check engine light first appeared about 3 engine hours ago after experiencing real bad cavitation. Whatever got sucked in the impeller cleared within a minute or two. I pulled out the pump assembly to verify nothing was left and no damage done to the impeller or wear ring. Low end power now seems normal with no cavitation. Thinking the light would eventually clear itself I used it a few more hours. I noticed that with the light on it may be in a limp mode. Above 40mph the power dies off and dont seem willing to work above 5k RPM’s. It feels electronic as it steps down from 8k to 7k then 6k and resting happily at 5k. Thinking it might be a spark plug Issue I replaced them all and removed the battery for a few hours. That cleared the check engine light. Took it to the lake for testing and the light came back on at the dock after about 2 minutes of idle. Took it out to open it up and it’s still doing the same thing. Lower end power band all seems fine all the way up to 8k. After speeds of about 40 mph power she just dies off and the RPM’s drop to 5K. I have no fault code option in the menu and pressing select a bunch of times does nothing. What am I missing? Do you really needs Buds or Candoo to reset the ECU and pull an error code? Is what I’m describing limp mode? Any insight is greatly appreciated.
Thanks
I recently acquired a newish 165 300hp Rotax with 14 hours. The boat now has 25 hours on it. The check engine light first appeared about 3 engine hours ago after experiencing real bad cavitation. Whatever got sucked in the impeller cleared within a minute or two. I pulled out the pump assembly to verify nothing was left and no damage done to the impeller or wear ring. Low end power now seems normal with no cavitation. Thinking the light would eventually clear itself I used it a few more hours. I noticed that with the light on it may be in a limp mode. Above 40mph the power dies off and dont seem willing to work above 5k RPM’s. It feels electronic as it steps down from 8k to 7k then 6k and resting happily at 5k. Thinking it might be a spark plug Issue I replaced them all and removed the battery for a few hours. That cleared the check engine light. Took it to the lake for testing and the light came back on at the dock after about 2 minutes of idle. Took it out to open it up and it’s still doing the same thing. Lower end power band all seems fine all the way up to 8k. After speeds of about 40 mph power she just dies off and the RPM’s drop to 5K. I have no fault code option in the menu and pressing select a bunch of times does nothing. What am I missing? Do you really needs Buds or Candoo to reset the ECU and pull an error code? Is what I’m describing limp mode? Any insight is greatly appreciated.
Thanks