Emission systems codes P0171 and P0174 on 2007 Acura TL

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?

by in Laguna Niguel, CA on February 02, 2012
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1 answer
ANSWER by , 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