I got the code P0430 for my 2006 Dodge Charger.

Question

I just changed the front and back 02 sensors less than three months ago. Could my catalyst converter be going bad or should I change the senor again? How would I know if it is? I did noticed a drop in my mileage from 305 down to 280.

Answer 1

Hi there,

In most cases the converter is the problem. The only way to tell is with a scan tool that can read the live data from the rear O2 sensors. If the proper wave pattern is there then the sensor is the likely culprit, if not then the converter would be the cause of the problem.