Guy boater guy
Recruit
- Joined
- May 28, 2020
- Messages
- 1
5.0 Merc mpi bravo 1. Motor intermittently does not have power to get on plane. Last season it happen a couple times now it’s almost all the time. As it gets hot it runs better and takes off fine. On launch sometimes it hits a wall at 3k rpm and won’t go past. No miss or sputter. If you can get on plane it runs great. 5k rpm 43-44 mph and will run as long as you want. When you stop it won’t go again. Started very sporadic but now is almost all the time. Gas is good, prop is good, Hull is clean, fuel filter is new, motor shows no active codes, and ran on a different gas tank and same problem. Questions are, will tps or map sensor show codes when scanned and is there any chance a failing battery could cause power loss under a load? And what all components will not show an active code when scanned? Going in the next couple days to check fuel pressure and compression but seems like these issues would show a code.