Yeah I looked into fuel supply issues thinking it's losing pressure the longer it sits. First the filter was replaced. Also ran fuel injector cleaners as well just as a maintenance.

To see if it was a pressure issue I primed the pump 3 times before cranking by going starting the key but not cranking on and off so the rails build up pressure but that didn't do anything either.

Also monitored my voltage while this was happening to see if my alternator is failing therefore not supplying enough voltage but it all checked out, voltage goes straight up to 13.8v and does not fluctuate with the rough idle.

So since I finally found about the IVM my really hoping this is it. Because every other potential issues should be happening all the time cold or not warmed up engine or not and it's not the case.


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2005 Imola 4.8iS