Hi everyone, thanks for accepting me here. I have recently purchases a 2017 A3 2.0tfsi sportback, and I'm experiencing an annoying problem. Whenever I accelerate there's an annoying stumble at lower revs. Its not as noticeable at wot, more noticeable with lighter throttle input. There's also a noticeable lurch at about 3000rpm. I have changed the plugs already as the car has 30,000 miles. After that it seemed to be less noticeable. I have also fitted a GFB uprated DV. The var was then mapped by a reputable independent specialist. Unfortunately having the car mapped has emphasised the fault,with it now having more power. Anybody else experiencing this issue? The car has the EA888 gen3b engine. Thanks in advance.