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Boat not getting full power 195 Impulse

PapaBear

Jet Boat Addict
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Location
Daytona Beach
Boat Make
Scarab
Year
2015
Boat Model
HO Impulse
Boat Length
19
When I bury the throttle both check engine lights comes on. Boat will only allow 6,000 rpm. After a few minutes at idle power the wrench light goes away and I can get normal power up to 7500 rpm or so. If I go above that same process happens.
 

PapaBear

Jet Boat Addict
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Scarab
Year
2015
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HO Impulse
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There are no codes associated with this tech says. The only thing they see is a inlet temp increase into the amber range which triggers the limit of rpm until it cold once again.
 

PapaBear

Jet Boat Addict
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2015
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HO Impulse
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Btw i just had the exhaust Manifold replaced... Never had this issue before. Anyone have any ideas?
 

Jet Boat Tom

Jet Boat Addict
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Northern Michigan
Boat Make
Glastron
Year
2014
Boat Model
GT
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20
I would check the intake manifold temperature sensor. I had this happen on a Seadoo 150 Speedster. The intercooler had been compromised and began to leak water into the engine. The intrusion of salt water made the sensor throw false temperatures to the ECM.
 

PapaBear

Jet Boat Addict
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Scarab
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2015
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HO Impulse
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19
Ok... Thanks. BRP is having MM do just that. Will keep you posted. Thanks.
 

PapaBear

Jet Boat Addict
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Location
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Scarab
Year
2015
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HO Impulse
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Flushed the intercooler... Have yet to test it out but tech says they ran it on the lake with no issues. Hopefully this does it.
 

PapaBear

Jet Boat Addict
Messages
195
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Location
Daytona Beach
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Scarab
Year
2015
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HO Impulse
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19
Boat worked as normal but I'm still not getting the 8000 rpm... I'm getting like 7800 and the check engine light came back on the second day I had it in the water... Urgh
 

PapaBear

Jet Boat Addict
Messages
195
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Points
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Location
Daytona Beach
Boat Make
Scarab
Year
2015
Boat Model
HO Impulse
Boat Length
19
Anyone have any good techs in the Volusia County Florida area
 

Solraider

Jet Boat Lover
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Location
Brainerd, MN
Boat Make
Scarab
Year
2018
Boat Model
HO Impulse
Boat Length
19
Being in central MN I found that humidity effects the top RPM and speed. Spring and fall no problem hitting 8000 plus RPM for 43 MPH. Mid summer is 7800 RPM and under 40 MPH.

Hope you get the fault code corrected . . . . would be awesome if Scarab would work out an agreement with Seadoo dealerships to fix these motors, they have the most experience and would be a home run for some of us owners.
 
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