check your idle dc over that period you logged - i bet it is cycling up and down to make this happen. i had the same on mine and it didn't make any sense. it was a while ago now but i think i fixed it (or at least managed a work-around) switching over to warm-up only, and back to closed loop again. for some reason my MS just got itself in a mess.
of course, you do need to check your closed loop idle settings are sensible
Skinny, I did as you said and logged the idle DC when the event happens. It pings to a value of 63 and then goes back down to 18. When switched to warmup only, the the issue doesn't happen so it's definitely a problem with my closed-loop settings. Here's a log:
well look at the value it's giving in your logs, the input still floats around and goes crazy. Could have an effect, consdiering you have a TPS ADC threshold of 85 and your TPS is reporting 19500ADC in that log...