I have twin 350 MPI inboards on my 2006 320 Sundancer. I had the mechanics replace the risers and manifolds over the winter. On the Starboard engine they found issues and recommended a valve job. Sent the heads out and reinstalled them. During the sea trial for the repair, they told me the engine will not go above 3000 RPMs, and they can not figure out why. The only thing I have found for this issue is a bad neutral position sensor. Any other ideas that would cause this problem with no codes?
Engine limited to 3000 Rpm
- Thread starter Rupp
- Start date
scoflaw
Well-Known Member
- Aug 10, 2011
- 6,395
- Boat Info
- 1999 Powerquest legend 260 sx 502 mag
2005 Baja 242 islander 496
- Engines
- 502 mpi Bravo 1
496 mag B1
More than likely a fuel delivery issue.
dan313
Active Member
A dock mate of mine had the same issue. It turned out to be the fuel pressure regulator on the cool fuel module. 5 min repair. Replaced it and all is fine. Easy fix.
Thanks. Will take a look.
scoflaw
Well-Known Member
- Aug 10, 2011
- 6,395
- Boat Info
- 1999 Powerquest legend 260 sx 502 mag
2005 Baja 242 islander 496
- Engines
- 502 mpi Bravo 1
496 mag B1
Put a fuel pressure gauge on the rail and see how much you have at 3000