Started doing this and it was a long day so Im just missing something dumb Im sure. Just idling, driving, WOT whatever it randomly pops Reduced Engine Power - but doesnt actually reduce any power? Ended up turning misfires completely off on the chance it was popping up a couple here or there even after I had numbed them down but ended up same thing. Stock throttle body, not tripping past any airflow limits sitting still obviously
Other thing I just noticed going through log was random knock retard that just held and didnt decay in a no load situation - all burst knock is turned off already