after i have changed the o2 sensors, a code pops up p0402, on 2006 Chevrolet Malibu

where would the dpfe sensor be located?

by in Slidell, LA on October 13, 2011
1 answer
ANSWER by , October 13, 2011
I cannot find any info for code P0402, are you sure you do not have a code P0420? Code P0420 would indicate a failed catalytic convertor.