P0420 Ford -F150 2006

Question

WHAT COULD BE THE ISSUE MY FORD F150 FAILED EMISSION THE TROUBLE CODE IS P0420

Answer 1

Hi there,

P0420 is a fault code for a faulty bank 1 catalytic converter. In most cases the converter must be replaced to resolve the code. Sometimes the rear O2 sensor can cause the code, but a scan tool is needed that can read the live data to determine if that is the problem or not.