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 on May 14, 2013
very possible, return and ask questions
ANSWER by on 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....