Mercury 240 EFI m2 jet drive engine alarm

[Aquaman1]

I have a 2004 Sea-Doo challenger 2000 with the mercury 240 hp EFI M2 Jet Drive. Here is my problem. When I idle out of the marina it runs fine. I go to throttle up no problem. Throttle up and get on plane then in about 20 seconds the buzzer alarm goes. It alarms for about 3 to 5 seconds during the initial sounding of the alarm the engine looses some power for a second or two then back to normal power. If I only accelerate to about 3000 RPMs the alarm doesn’t go off. Put it back at idle no alarm go back to full throttle 15 seconds later the alarm goes off sounds until for a couple seconds then goes off. I was thinking it is a overtemperature overheating alarm however the water bypass is warm to the touch but not hot. I can touch the top of the cylinder heads and thermostat area and it is not hot. Doesn’t seem like the engine is overheating. I have tested the throttle position sensor with a volt meter and reads within normal limits. I have checked all of the coil packs with a in-line spark plug tester and all are firing. When I run it on the water hose at home the alarm does not go off. Please Help

 

[faztbullet]

Checked the fuel filter?

 

[Aquaman1]

Thanks for your response. I’ve ordered new fuel filters. They should be here sometime next week.

 

[faztbullet]

The fuel filter has a water sensor in bottom of it. Unscrew it and dump it in a clear glass container and check for water in fuel

 

[Aquaman1]

Thanks I will try that

 

[Aquaman1]

OK, the fuel filters were replaced. I emptied the old fuel filter. There was no water in that filter. I also tested the fuel injection system with a pressure gauge and got a reading of 43 pounds which is what the Manual says it should be plus or -2 pounds.