P2106, P2110, P161B, Car Hesitating/Lurching

[northguest47]

Dealership not much help.. (EDIT: correction- yes they were see below) said it's probably the CAI plugging up, but I disagree, I've been monitoring the MAP to see if it spikes to 14 when the hesitation happens and it doesn't. Still, I realize I shouldn't be using the CAI.. totally overlooked that as this is the first time in since it's install in 2011 that really cold conditions are encountered. IAT was down to -25C at one point (-13F).. hmm perhaps the fuel mapping hits a boundary there lol.
My first reaction was bad gas.. as this happened after a fillip at a small station in a small town. Do you think some bad gas with too much water or diesel mixed in could have started this off?
Lets say it's a coincidence and it's not bad gas.. even good gas with that much cold air might have issues at the injectors. Maybe bad gas and a it fouled a plug?
Dealership did 'defrost' the car in the heated shop for a few hours. Its still happening but not really bad that only happened the two times. Now it's not bothering super much as I don't think I'm damaging the motor, but still what are your opinions about perhaps a sticking throttle body and maybe a fouled plug(s)?
Thanks the input guys. Last night in temperatures close to freezing car ran like it normally does.. engine very smooth and much more power... once the temps drop to -10C (14F) or lower this issue seems to creep up.
What about that the 87octane gas is cut with 10% ethanol?
Also bought Lucas juice which I always use but stopped about 4 weeks ago when I ran out.
On the road for another two days I'll keep posting updates..