I have an 99.5 2.8 A4 quattro, when I press on the gas it will stay at the same speed and maybe 2-3 seconds later it'll realize the gas is on, then it accelerates. Whats the problem here, what am I needing to do to fix this, and what kind of cost am I looking at?

hehehe an old trick by us oldies, we slacken the throttle cable so you dont get the boost or full throttleif thats not the problem the get some fault codes