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Diagnostic Port Location(?)-2003 Carver 396


I am having issues with my Port engine on my 396. The engine (once started) runs rough at idle, oscillating between 700 and 1000 (Approx) RPMs, Sometimes it will level out for a bit, only to start oscillating again. Once on the water, the engine will not reach 3000; which means my SLOW circuit is activated. I decided to buy diagnostic software from Diacom, along with a few nifty plugs to plug into the EEC to read the codes.

The only problem is, I can't seem to find where this diagnostic port is on my Volvo Penta 8.1 Gi Engine. Does anyone happen to know where it is?

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