is it possible that mym exhausr system would be doing this? cuz in the front drivers side exhaust thing, there is this clicking sound when the car is running, so maybe the exhaust is cloged up with some crap in it

 

Ok, got this figured out, turns out my front exaust part is clogged up, particularly left side. So tommorow the car should be done.It's in my dads deallership. Tommorow one of his mechanics gonna weld the mufler and it should be done. With out the exaust the car runs perfectly. So thanks for the help and advices you guys gave me. So til tommorow I get to drive 2006 S4 6spd manual. ( Not my its just in the dealership).

Thanks
-Yoshi-

 

Glad you got that worked out.

 

oki, i had same problem (10-12 years ago). Also nobody figure out, what's wrong. But i have one smart friend, and he just check preasure of gas, behind gas pump. There was not preasure enought for blast gast thru injectors. All i recommend is change gas filter and gas pump.
PS: go to local junk yard, and ask for those parts. Also check ypur gas tank for some kinde of dirt on the bottom. (that's what destroy gas pump and clog gas filter).
Good luck.