Sail Life – A backup to Volvo’s 💩 MDI problem. The DOOMSDAY box!

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Want engine start, oil pressure, and temperature monitoring with a dead MDI box – meet the doomsday box! Volvo’s MDI boxes have a reputation for being unreliable. Mine died last summer – it took weeks to find a replacement and cost $600. This simple fix will allow you to continue using your engine with a dead MDI box. More details on

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