while driving my car would not accelerate on 2007 Nissan Maxima

while driving my car it would not accelerate after I shut it off it would not turn on again while this happened the brake light and the battery light came on also the check engine light came on so I plugged in my odbII pocket scanner and I got a code 0420 what would cause this problem. thank you

by in Old Bridge, NJ on December 02, 2013
1 answer
ANSWER by , December 02, 2013
POSS PLUGGED EXH,PO420 IS CATT ISSES