If you got no codes when checking it then it probably wasn't triggered then. It's hard to say for sure what was going on to cause the "hesitation" but if i had to guess i would say either timing corrections or IATs were killing your timing.
There's not much you can do about the code other than datalog and check the codes occasionally to see if it comes back.
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne