i am new to the forums, quick info, i am an ASE certified master technician, with over a decade of in shop experience, automotive, not Motorcycles, however its all the same more or less. Harleys are my hobby. i regularly search TSB's(technical service bulletins) published by the manufacturers on vehicles i own. here are a couple i have found, i also found the relay info.
Here is one nugget of info i also discovered,
SYMPTOMS: poor idling, hunting idle (high and low mainly when cold) stalling, hard starts hot and cold. and when riding occasionally it feels like the bike cut out for a split second, or a "glitch" in the power.
CRANKSHAFT POSITION SENSOR is faulty on early fuel injected models, yes i have this problem with mine. i know about the relay issue as well.
just wanted to throw that out there in case you noticed any of these symptoms.