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Old 06-07-2018, 02:12 AM   #1
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Default 2004 5.0 861459-1

What is the function of PN 861459-1 black box?
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Old 06-07-2018, 03:02 AM   #2
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Can you post a picture? Where is the box located?
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Old 06-07-2018, 04:14 AM   #3
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The ECM Control modul?
It this?
https://www.ebay.com/itm/MerCruiser-...-/372271094758
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Old 06-07-2018, 12:16 PM   #4
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Google search shows it as ICM (Ignition Control Module).
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Old 06-07-2018, 02:32 PM   #5
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I found this quick hit. A decent write-up from the most unexpected place.

https://www.ebay.com/gds/How-an-Igni...8532970/g.html
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