I’ve changed all fuel lines and hose clamps but that’s not stopping it.
As for the beeping and check engine light, the only way to stop it is with full throttle. Remember, this only starts after a few hours of running.
I have a 2003 Johnson 90hp 4stroke on a pontoon boat. Engine starts great cold and really runs well. My issue is after 2-4 hours on the water and then a long run at 50-100 throttle, I'll get a 20-30 second solid beep and check engine light. This sometimes happens when I am breaking speed down to...