Okay, i dont know where to start, before i take it into a shop i wanna see if its an easy fix, i bought myself my first audi, and a few days ago i was in a local parking lot and accidentally drove off a curb(looked like an exit...) and hit my chasis right behind my front wheels pretty hard, i paniced alittle and a gentleman advise to back myself up and back onto the curb or id drag my bottom across it, so i did, everything worked out fine untill i gave it just enough gas to pull the front end back up and then she sputtered and lost like all torque, shifted back into drive(was a loudish clunck) and then more sputtering and pulsates,(so reva to like 1krpm and drops, revs up and drops, then die) i gave it some gas, reved supered hard and really loud, shot into 2500-3000rpm and kinda moved. After that she wouldnt idle really at all, i could get her to drive but it was rough, lots of surging, at 35-40mph brake alittle to prep for a turn, and itll die. I hope i gave a good idea of my issue. Most definatly can give more detailed info!!
Since i got it back to my drive way, theres a hissing that goes woth the pulsating revs, its like a heartbeat, i notice some vaccum lines had no suction so i replaces all the one i could, it turned on and reved super smoothly ffor a few mins, gave alittle gas and back to the same thing. But not as rough, the exhaust shoots out in rythym with the pulsation but its thick white and doesnt smell burnt or anything.
Anyone have any ideas?.