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525efi 3 beep alarm

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525efi 3 beep alarm

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Old 09-16-2018, 10:43 AM
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Default 525efi 3 beep alarm

had a alarm sound on me yesterday. Motor started the day fine ran for a while had lunch and as soon as I turned the key I got a 3 beep. Motor idled rough and continued the 3 beep. Got on plane and alarm stoped motor ran great. Went to put put it on the trailer and same thing, 3beep even with out starting the motor. I put new IAC on it about 8 hours ago. Any suggestions, I got the marina going to run a code scanner on it just wondering if anybody had any thoughts without having to pay for that. Appreciate the help in advance.
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Old 09-16-2018, 11:36 AM
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Here is the list of 3 beep codes, and with it idling rough might be the TPS

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Old 09-16-2018, 12:27 PM
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needs to put up his engine serial number first and foremost. earlier 525 are not set up like the later ones. And depending on engine serial number -- they can have voltage issues. I am coming up with a fix for that end VERY SOON.
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Old 09-16-2018, 12:37 PM
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it is wise to have scan reports to compare every year - year after year. Matter of fact 2 scans a year is good to have ---the reports can be logged to catch issue(s) before they become bigger issues - (comparing reports can help for that ).

A great example just for one parameter to keep eyes on is water pressure readings to compare from beginning boating season to say mid season . I Print all scan reports and keep them on file for everyone that boats that are in my hands. And of course I charge for the scan..
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Old 09-16-2018, 02:43 PM
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Thanks for the help. The serial number is OM905807.
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Old 09-17-2018, 09:44 AM
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I'm putting chips on Red and a bad water pressure sensor .

Ok that is because we just had that sensor go bad.
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Old 09-17-2018, 02:17 PM
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Iíll let you know if your the big winner. Thanks for the input. Did you have a rough idle from that sensor?
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Old 09-18-2018, 10:33 AM
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Originally Posted by therealmccoy View Post
Iíll let you know if your the big winner. Thanks for the input. Did you have a rough idle from that sensor?
No rough idle. Just beep and guardian mode over 3500 rpms.
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Old 09-18-2018, 01:53 PM
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I'm going w/ cam sensor.
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Old 09-18-2018, 03:08 PM
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Originally Posted by sutphen 30 View Post
I'm going w/ cam sensor.
I hear you if it was moved and or installed by whomever as per the issue(s) plus warning horn was right after that.

A scan of the engine is needed here.
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