I have an 02 a4 and i jave had some trouble with the idle as well as overall performance while driving. The car seems like it bogs down at about 4 thousand rpms and then again while it idles too. I have replaced the valve cover gasket, fuel pump, fuel filter, had the exhaust redone and still the same bogged down car. Any ideas before i take it to a mechanic that will rape the money out of my pockets? Thanks for any help!

 

Is the check engine light on? If so what are the fault codes?

 

b6a4ohio, where in ohio are you?

 

I have a similar problem..when I go to give it it gas it just falls on its face..no power... I had a misfire code so I replaced the fuel pump dv and all four plugs and coils... Still having same issues... I don't know about your car but I'm no longer reading any codes or check engine light but it's still running Terrible...hopefully we can possibly figure it out together

 

Do a search for Throttle Body Alignment and try it out. If its out of whack it'll cause all kinds of issues with driveability.

 

check for vacuum hose leaks and vacuum valve leaks too