Ar 192 sputters

[Mbutters]

I have a 2015 supercharged ar192 that is sputtering after pulling a tube. I start it and it sounds like it is choking on fuel. It will clear up and run normal after a it of low throttle operation. The boat has never pulled the rpm or speed that has been described here.

I am not sure if the problem happens after getting out o the throttle or what. I have checked that the supercharger does not spin both ways, and the piping from the supercharger and intercooler seem fine.

I don't see a maf or o2 sensor on this boat, does it run on throttle position and rpm?

 

[tdonoughue]

Don't know of one of our boats that doesn't have an O2 sensor. Go to a parts site, put in your year and model and check the engine parts diagrams/lists. I think they call it something odd (like 'sensor' or 'run sensor' or something like that).

The other thing I have heard be an issue with the supercharged ones is where one of the tubes becomes disconnected. So doublecheck that you don't have one of those disconnected (or missing). If I recall, we recently had a gent who had one of the downward facing ones underneath that was off and caused similar issues.

Hope that helps some...

 

[Mbutters]

Don't know of one of our boats that doesn't have an O2 sensor. Go to a parts site, put in your year and model and check the engine parts diagrams/lists. I think they call it something odd (like 'sensor' or 'run sensor' or something like that).

The other thing I have heard be an issue with the supercharged ones is where one of the tubes becomes disconnected. So doublecheck that you don't have one of those disconnected (or missing). If I recall, we recently had a gent who had one of the downward facing ones underneath that was off and caused similar issues.

Hope that helps some...

Thank you very much. Did a bit of poking around looking at the inlet and supercharger ducting. Looked pretty solid.

 

[Carrie Fry]

Do Jet Boats have Mass Airflow Sensors?