Hi I'm Dave. I just had a vacuum leak repaired and a new fuel pump installed on my 2000 Monte Carlo ss. Unfortunately I'm still showing a p0171 code, it's running decently but I was advised to have a diagnostic done at a dealership. The reason I signed up was for timely advice.... thanks!

 

Hi Dave and welcome to the forum!!
I would take it to your local parts store and see if they can clear the codes for you.
Here is a thread that may give you an idea of what else that could be causing the code if it comes back after clearing the code.'
Click-->https://montecarloforum.com/forum/mo...ighlight=p0171