1st code that popped up was PO455 Evap large leak detected. Reset codes and code that pops up now is PO420 catalyst 1/1 effic failure. Where do we start to look for repair? I have researched and see vacuum leak, 02 sensor or catalytic converter. Any suggestions on what hose may be off causing the leak???
Jun 26, 2008 at 2:22 PM