I recently took my car into a shop to replace the high-pressure brake fluid hose because it was leaking. I guess the repair was quite extensive and the technician had to remove a bunch of stuff (I don't know what) in order to get at the hose. When I got my car back these two codes were present. What's your best guess as to what might be causing the codes?
Emission systems codes P0171 and P0174 on 2007 Acura TL
by TopCarGuy in Laguna Niguel, CA on February 02, 2012
ANSWER by globalhelper on February 02, 2012
THESE ARE LEAN BANK 1 AND LEAN BANK 2 CODES HE HAS LEFT YOU WITH A VAC. LEAK OF SOME KIND. PROBABLY NO BIG DEAL. GIVE THEM A CALL AND GO BACK FOR THIS ISSUE