Phonzo

I have a Audi s4 2001 79k miles. Got codes:
P1140
P1122
P0300
P0130
P1127

Just got this audi and i am in the learning process. i need a new o2 sensor for bank 2 sensor 2 because the mechanic told me it was cut Somehow. So i am going to just replace them all. But does that make the car hesitate sometimes, and the check engine light will only flash if i am idle for a long time but it hasn't done it the last couple days. The car had no power and I have relatively new spark plugs so i just replaced the coil packs myself, and now the car has most of its power back it just hesitate's often. Can the o2 sensor be causing the misfire or could it be something else? Any other suggestions of what may be causing the hesitation and help is appreciated!

Prospeeder

Sounds like it has a huge air leak, and is running lean. Probably why its throwing o2 sensor codes since they wont respond if mixture is off, and if its too lean it will misfire and hesitate. You should post the meaning of all the codes, i dont feel like looking them all up.