As soon as I put it back together it's gonna do it again... probably :rolf:
Maybe since the noid light didn't flash for 2-3 revolutions, maybe the ECU had a hiccup and the light helped it reset something...
Or maybe I happened to pull the one injector plug that had connection/corrosion issues and the noid light cleaned them... because if you unplug one injector it disables all 4.