I have a 2017 Focus ST, bone stock. Just hit 8,000 miles. I have noticed this particular issue since 2,000 miles. I will say, i have only noticed it on days where the temp is above 40 degrees. So here is the issue. Sometimes when i give the car gas it bucks a little, and sputters. There is no active codes, and no CEL. I have taken it to Ford, and they were not able to replicate the issue. They thought it could be a throttle body recall, but did not find anything. Any help is appreciated, Thanks.