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502 MPI Buzzer Noise Codes

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Old 05-20-2011, 11:47 AM
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Default 502 MPI Buzzer Noise Codes

Buddy has a double buzz at idle. Does anyone have a list of codes for what the buzzers mean. I believe this one is a double buzz once a minute or so at idle - nothing steady.

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Old 05-20-2011, 03:19 PM
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dont know about the double buzz, but an intermittent buzz is a stored code and a solid alarm is either OP, drive oil or overheating
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Old 05-20-2011, 09:47 PM
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Read this :

http://www.offshoreonly.com/forums/d...an-1-00-a.html

and you can pull a code. If there is no code then it is most likely a bad idle air control. I don't know why but a lot of times the 2 beeps every minute seem to be an IAC. And it will not set a code.
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Old 05-20-2011, 10:56 PM
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WOW Ted - Thanks.

He was already going to throw an IAC at it in hopes that was the issue, but the rest of that could prove priceless the next time an alarm goes off.
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