OK clean and rotate my coils in my Aspire nautilus BVC every 4 to 6 days this has been working well until last night when 4 hours after replacement coil it quits hitting and low resistence light comes on. Change coil 2 more times LR comes on right away. I check all 3 coils with multimeter they are 1.9 to 2.1. Put a new coil in and its working fine. Any input will be appreciated.