S stray 4runner New member Oct 8, 2013 #1 2001 trouble code P0420, have replaced cat converters, O2 sensors, air/fuel sensor, muffler & tailpipe continue to get trouble code after 30-40 miles. Any suggestions?
2001 trouble code P0420, have replaced cat converters, O2 sensors, air/fuel sensor, muffler & tailpipe continue to get trouble code after 30-40 miles. Any suggestions?
chaz New member Oct 8, 2013 #2 did you replace them yourself? if so were the codes cleared after the repairs were done?
