HOW DIFFICULT IS THIS TO FIX MYSELF

Question

I HAVE A 2005 ACURA TL, I HAVE CHANGED THE SPARK PLUGS AS WELL AS THE COIL PACK ON THE #5 WHICH WAS MIS FIRING WHEN I PURCHASED IT A FEW WEEKS AGO. I NOW HAVE A p430 CODE COMING UP ON BANK 2.

Answer 1

P0430 Catalytic below threshold Bank 2

Bank 2 is right in front of the vehicle, so the access should be rather easy, Misfires are the most damaging of all codes that are set, this deteriorates the catalytic convertor , Misfire are" A"  code conditions it suspends any other codes that may also been set