I need your help. I live in Houston SW and I bought a 2012 f150, recently. I took the truck home and couple of days later, I got a check engine. My code scanner is saying "catalyst system efficiency below threshold bank 1" and "bank 2". (Code P0430 & P0420)
The dealership had replaced both catalysts before I bought it. I took the truck back to Ford dealership twice and they still couldn't solve the issue and it's just a waste of time and gas money for me to keep taking it back. The dealership is in Beaumont. Any ideas??