During a 150 mile ride the other day my bike was misfiring and on the way back it stalled out 4-5 times (a few times as i was crusing at 70mph which was not fun). I checked the ground wire and battery cables, checked the injector wires, spark plugs, ECM connector, etc and everything looks good.

I did the diagnostic check and up came code b1007 "Ignition Line Overvoltage Instruments" which kinda makes sense since my speedo was going nuts when it would misfire.

Anyone know where or how to begin to address what could be the issue here? Or am I forced to take it to the dealer??

Help is much appreciated.. i'm running an 07 Street Bob with PCIII (and map from Fuel Moto) along with Python Staggered Duals and a Ness BS1.