CEL problem

["IN A MEETING"]

2014 212x - boat ran great better part of the day. Went to crank it after sitting in the middle of the lake for 30 min so the kids could swim and port engine check engine light and alarm came on. Engine cranks (sounds a little rough) but is in limp mode and won’t go over 2,000 RPM. No codes show on the screen. I just started using Engine Med Rx because my manual recommends it. Any ideas???

 

[Dean P]

Strange...Can you re-boot the system? Could be O2 sensors. Battery levels ok? Do you have dual batteries?

 

["IN A MEETING"]

Strange...Can you re-boot the system? Could be O2 sensors. Battery levels ok? Do you have dual batteries?

I did try to disconnect the batteries to reboot the system (although maybe not for long enough so I will retry this). Battery levels should be good. Have dual batteries. Sensor (o2 or MAF) was a thought I had.

 

[Dean P]

I mentioned batteries cause my system started screwing up bad due to batteries being low. I ended up buying 2 AMG deep cells along with an on-board charger. I would change out the O2s (2/engine). You could swap them with the other engine to see if the problem follows them or not. You'll need a special socket to remove them.