1997 a4 1.8t sputtering under full throttle
 

Just picked up my first audi the other day and love it, other than the fact when I'm under full throttle it starts sputtering. The guy who previously owned it wasn't very mechanically inclined so I have no clue what's up with this car I just wanted something all wheel drive to mess around with and got it for a great deal so went and picked it up. The car has no boost gauge so I have no idea what it's running but will be sure to find out soon, any help or input would be great. I'm gonna check out spark plugs and stuff later on to try and figure out the problem but I'd like to hear advice from someone who's owned an audi longer than me I'm not too familiar with these cars!!

I had my fuel filter changed the other day and the dumbass put it on backwards...i said that to say maybe the filter might be clogged...not sure how long the car has been sitting?! Start with the simple things...check your injectors too