forum member 'Down Time' had the exact same problem last weekend....
Could it be detonation causing the alarm?, it seems as though I read something about this in Hot Boat a few months back in the [email protected], I believe it was on a 600sciBillR said:This year - the last 2 times out, I have had the warning alarms on my motors sound.
1st time out this year; the stb motor alarm would beep very intermittently 1 to 1 1/2 times, then be silenced. Happened about 3 or 4 times.
2nd (last) time out. Ran HARD on the 1st leg of a poker run. After coming off plane this time after a few minutes, both motor alarms sounded and they stayed on for a while!
On the 575's mefi 3 the alarm will sound for:
Low oil pressure
Low Drive oil
engine over heating
Each time this happened, I checked all gauges. Everything is fine. Drive oil is fine. Checked every engine sensor connection while alarms were sounding - all fine. (at least I checked the ones I could reach)
This alarm ONLY happens a few minutes AFTER I have come off plane. Turn key off then back on to restart, alarm will resound after a few seconds.
Since all gauges were fine, I came back up on plane, both alarms were silenced about 10 - 15 seconds after throttling up. The alarms came back on next time I came off plane, but eventually silenced after a few minutes. Then ran boat all day (on & off plane) and they never sounded again.
Are there different sensors for gauges and different sensors for ECU?
The only thing different from last year - I removed everything from the motor box and refinished and replaced JUST ABOUT everything in the motor box. Replaced anything slightly questionable.
Any ideas on what could be causing the alarm?
Thanks in advance for all responses.
Thanks! There isn't any.Not Right said:I would be very shocked if you found any corrosion on Bill's boat. He is probably fuming at the mere suggestion.
It is in better than new condition, no exaggeration.