Yet another mysterious lean engine (P0171) code
Hi all - this is my first post and I was hoping to get some thoughts on my troubleshooting process (and I apologize for my long post, but I want to make sure I give as complete a picture as possible). A little over a year ago, my 2003 Corolla LE (136,000 miles at the time) check engine light...
www.toyotanation.com
Also check vacuum leaks especially around the intake manifold.
