P0430 1998 Ford F150 -

Question

I have a 1998 E-150 van with 5.6L Triton engine that has a PO430 code reading along with running lean error codes PO171 and PO174, what shall I do to fix it?

Answer 1

Hi there,

The lean codes are usually a result of either low fuel pressure or a bad mass air flow sensor. I would check the fuel pressure, then if it's good, replace the maf sensor. Then clear the codes and see if the converter code comes back. If it does, then you will likely need to replace the bank 2 converter