Engine cutting out/surging under 1800 RPM's

bmay1909

Active Member
Nov 11, 2018
155
Lake St. Clair/MI
Boat Info
02 Sea Ray Sundancer 380
04 Sea Ray Sundancer 320 (sold)
Engines
Twin 8.1 Mercury Horizon V-Drives

Twin 6.2L MPI 320-HP V-Drives
I have a 2004 Sundancer 320 with twin MIE MX 6.2 MPI V Drives. I recently had it serviced, oil changed, fuel filters, plugs, cap/rotor, and impellers. Yesterday I took it out for the first time since being serviced. It ran great for about 20 minutes then when I slowed down (idle speed) I noticed my RPM's fluctuating a couple of hundred RPM's on my starboard engine. It did this a few times and the engine would stall out. It would start right back up. After about the 3rd time I received a "fault sensor, fault TPS" error on my smartcraft gauges. Once above 2000 RPM's (for the short ride back to the marina), the alarm did not go off and everything was running normal. As soon as I decelerated and got to about 1800 RPM's the alarm went back off and once cut out again. Started it back up with no issues and then the port engine cut out.

Does anyone have any suggestions? Would the starboard engine issues cause the port engine to cut out?

Could this be an IAC issue?

Appreciate the help/suggestions
 

Forum statistics

Threads
113,218
Messages
1,428,821
Members
61,115
Latest member
Gardnersf
Back
Top