Hey guys just picked up a 2003 XB9S a few days ago. The check engine light was on when I picked it up. I took it to my local Harley dealership to clear the codes. The codes I pulled were battery voltage, O2 sensor, both coils, and the tach. They turned off the lights and everything stayed off except code 24 and 25. The bike runs great, no rough idle. They recommended to take the NGK plugs out and put HD plugs back in......

Tonight I checked the codes and 35 was back along with 24 and 25. I've looked over the wiring the best I could. and didn't see any exposed wire. Anyone have any ideas?

Thanks!
Ryan