Let's start over......
If the front 02s fail then you get a P0053, P0059, PO131, PO132, PO133, PO134, PO135, PO150, PO151, PO152, PO153, PO154, PO155 as well as your normal PO170, PO171, PO172, PO173, PO174, PO175
IDK what is so complicated about it, again the fronts are the main sensors, if they fail or get bad readings they throw codes, and can throw lots of codes. Rears only monitor cat efficiency, thats all.....
IDK what is so complicated about it, again the fronts are the main sensors, if they fail or get bad readings they throw codes, and can throw lots of codes. Rears only monitor cat efficiency, thats all.....
Good luck Randall!!!