I just had to take my 2003 A6 in for rattling and it seemed to be
revving a little higher than normal, especially on inclines. Ended up
being a bad catalytic converter. - Aaron

--- In NorCalAudiClubForum@yahoogroups.com, "david_aaron4"
<david_aaron4@...> wrote:
>
> My 2001 A4 makes a rattling sound under 1000 RPMs, with a very slight
> loss of power over 1K. The car sat for six months while I was out of
> the country. A friend mentioned that he had the same problem and that
> all I need to do is take the car in and have the throttle valve
> control module recalibrated. Does this sound right, and if so do I
> need to take it into the dealer or can I take it to an Audi mechanic.
> Also if anyone has can recommend a good mechanic in San Francisco I
> would greatly appreciate it. Thanks in advance for any information.
>
> David
>