Originally Posted by Jeff@topgearsolutions
It's possible. But in defense, it is much colder then it was 3 months ago, so it would require more fuel as the air is more dense, theoretically.
with flash your trims shouldn't change with weather... it's something else either in hardware or tune adaption. If the banks follow each other likely not an injector.
OP, post a log... if you can catch the hesitation, it should show in the log. Can you hear a change in exhaust note when it happens?