engine light on code 446 on 2007 Pontiac Grand Prix

just had fuel pump replace at dealer ship 4 days ago,now getting code 446 could this a problem they cause

by in Potwin, KS on May 14, 2013
2 answers
ANSWER by , May 14, 2013
very possible, return and ask questions
ANSWER by , May 14, 2013
SOUNDS LIKE AN EMISSION HOSE TO THE CANISTER CLOSE VALVE OR THE CANISTER BOX IS EITHER CRACKED BROKEN OR NOT PROPERLY INSTALLED....