Engine Oil Pressure warning siren (2019 GS 22/PCM H6 6.2)

[wvnellie]

Relatively new Nautique owner here; purchased a new 2019 GS 22 last summer. I've noticed that the oil pressure tends to run high (at least compared to what I would consider normal), often in the 70 PSI range.

Last night after a few hours of surfing, I started getting a siren every time I opened the throttle (speed was 11.2, and RPMs were in the 3500 range). The siren lasted slightly longer than the alarm that sounds when the speed control is engaged, and I initially confused the two. Eventually, however, I noticed a green lamp in the bottom of my Panoray that looked like a throttle/joystick with a downward curving arrow. It happened every time the oil pressure hit 80 PSI, and disappeared as soon as it dropped.

The engine didn't log any faults, and I cannot find any manual or internet info that shows that warning lamp. I'm usually not the type to shrug something like this off as "normal," since someone programed this alarm/lamp into the system for a reason, but I cannot figure it out. The boat stays in the water all summer, and is about 45 minutes away from our extremely busy dealer, so I would love to avoid pulling it and letting it sit for weeks in the shop.

Anyone have any advice/insight?

Thanks in advance!

[jkallen21]

I called PCM about a nagging oil pressure alarm and they told me to try thicker oil (20W-50 IIRC). That did help, but my engine is a lot older than yours too so I'd call them. Also, on mine there is a T-bar that has the oil sender on one side and the oil alarm switch on the other. They are pretty easy to change and it could just be a faulty alarm. Lastly, Nautique has a spec for that alarm and it would be worth a call to them to see at what pressure the alarm sounds so you know if the gauge and the alarm are in agreement. For example, if the alarm is supposed to activate at 40PSI and the gauge is showing 80 when you hear it, I would suspect the alarm switch. Make sense?