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525 efi issue
Hello everybody, first time on the OSO Forum. I have a 2005 382 Formula Fastech w/ 525 EFI's, 350 hrs. My problem is the port motor. When it goes above 3100-3200 rpm the alarm will beep very quickly. So for example if I bring it up to 4000 rpm, the alarm will sound, rpm drops to 3100 ish for a second and then goes right back up to the 4000 rpm . This will continue back and forth every 5 seconds or so at all rpm's above the 3100 mark. Any ideas???? it is a Smart Craft motor but I do NOT have the Smart Craft Display.
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Shot in the dark, how is your water pressure? 525s like new impellers and impeller housing every season. If you own 525s a Rinda scan tool is one of your best investments. Plug it in and you can see every code, alarm, and running conditions. Avoid aggravation and frustration and save $ from guessing the fix to a problem, just some friendly advice. Im speaking from experience, same engines in our last boat.
I also had sensors go bad three times on my 525s ruining my weekends, if I had a scan tool earlier in ownership time I would have been able to diagnose and get it fixed fast. |
Thanks, I am definitely going to check into the Rinda scan tool on Monday. Just trying to figure out the problem ASAP due to the fact I have a poker run on Wednesday. Yes, replaced both sea pumps last month.
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Similar issue. I’m on the way to the shop to plug the boat in. I’ll update with my findings, hopefully that will help you out. Also, if you search it out, there is a schematic in what beeps mean what (very generic). As mentioned above, the scan tool is very much needed. |
Thanks, well appreciated. I came across a thread that suggested the neutral safety switch? Your thoughts?
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Setting yourself up to throw darts.
You are in a very large boat area....I would get on the phone and see if anyone will run the code for you. Also, do a post in the mich section to see if anyone near you that has a scanner. |
I've tried all of the local boat shops, all telling me a week out or so..... I will try the local post. Thanks.
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Mine was similar and turned out to be the neutral safety switch but my mechanic pointed out that several faults will result in the computer limiting the engine to 3000 rpm’s so only a scan tool will be able to determine which one. Adding the mobile vessel view plugin this year so I can see what is going on and hopefully avoid future guessing. |
Problem solved. It was the neutral safety switch. Thanks for the help guys.
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Just to be clear - are we talking the shift in gear switch or the neutral safety switch ? the reason I ask because so many people call the shift in gear switch the neutral safety. switch. They are 2 completely different switches.
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