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Two beep alarm and bouncy tach

Old 05-14-2012, 07:15 AM
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Default Two beep alarm and bouncy tach

I have a 2005 496 h.o that is throwing a two beep alarm every minute and the tach bounces. Engine runs fine when alarm goes off........ Any ideas
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Old 05-14-2012, 07:26 AM
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Iac
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Old 05-14-2012, 07:34 AM
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Idle Air Control.. would'nt the motor rev up and down with the tach?
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Old 05-14-2012, 07:45 AM
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IAC is a strong probability, but I would not buy or replace anything without running it on a scan tool first.

If you have a 496, or any of the motors with SmartCraft, the Rinda scanner is some of the best money you will spend on your boat.
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Old 05-14-2012, 09:41 AM
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Originally Posted by Sydwayz
IAC is a strong probability, but I would not buy or replace anything without running it on a scan tool first.

If you have a 496, or any of the motors with SmartCraft, the Rinda scanner is some of the best money you will spend on your boat.

+1 I just did the Rinda thing and glad I did. Found a used unit in Oregon for $200 with version 1 chips. Found a set of version 4 chips for a good price and now have the complete setup for $260. Best money I have spent on my boat yet.
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