Loss of power

kjk05006

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Joined
Jul 4, 2020
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I have a 2005 volvo penta 8.1 GI-E in a Chaparral 256 SSI.

I recently had issues with the starter and replaced it. The engine starts without difficulty but runs a little rough. Went to test on the water today and I don't have enough power to get onto plane.

I did realize that I ran for about 5 minutes at no wake speed with the blue fresh water hose adapter cap open. I noticed after I got a single beep every 5 seconds or so. I closed it up and the beeping stopped. I never noticed that the engine temperature went up significantly.

When running, I occasionally get a loud knock sound from the engine but can't seem to isolate where that is coming from.

I replaced the electronic fuel injectors a few years ago when I had a similar issue. Does this sound like a fuel injector problem again? Just figured I'd check before replacing them.
 
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