My 17 year old son just bought this beautiful car that runs well, but when it idles for 30 seconds it gets rough and then stalls. It also had a CEL with code P0171...we thought it was a o2 sensor since it was on only one bank...changed it and the CEL is gone but it still runs rough at idle. Any ideas? I thought maybe it was a vacuum leak but can't find it (at least not where I can get too).

Welcome to the forum!

Have you searched the forum for the code P0171? There have been quite a few discussions related to this, and especially with the 2000-2002 V6, a few common issues that could cause this. If you are handy with tools and have a weekend to spare, you can save yourself a lot of money on the repairs.

-Rod