I have a really strange issue with my Fat Bob. It is slightly modded with V&H Short shots, K&N high flow filter assembly, Andrews 57h cams and V&H Fuelpak tuner and tuned for mods. Today it started just fine and idled normally, but when I twisted the throttle the neutral light went off along with the speedometer light. The idle then began to climb and when I looked at the fuelpak all of its lights were off. When I pulled the codes it showed ECU comm failure and high voltage to speedometer. I re-flashed, cranked again, idle was fine then barely twisted the throttle again dash lights went off and fuelpak lost connection, did this 3 times with same codes. Re-flashed to factory settings and disconnected the fuelpak. Tried again same results and codes. Could I have a bad ECU or something else I’m missing?