Light flashed for a spell today, on a light throttle, though no code generated, so there is a problem of some sort. I am about 1,000 miles past a service so, once I get a chance to get it done I will replace the plugs, even though they were changed a year ago (about 13,000 miles - should be good for 25,000).
If the MIL continues to flash I will have to look at ignition coils.