changed cataylst and all 4 oxygen sensors and drove 98mil Check engine comes on on 2005 Kia Sedona

Machine still reads PO430; van won't pass inspection

by in Boston, MA on March 08, 2014
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2 answers
ANSWER by , March 08, 2014
Check for power and ground at all sensor heaters.
ANSWER by , March 09, 2014
Have it tested with a real scan tool, and someone that can use it!! It will show what is going on here in live data! Snap-on Modis will do just fine!!