To Whom It May Concern:
My truck threw DTC P0420, today. Additionally, it's been carrying P0430 for several weeks. If I'm not mistaken, the P0430 is pointing to the catalytic converter. I ran some Cata-Clean through it with disappointing results.
Is the P0420 DTC pointing to a bad upstream HO2S? Has a bad converter caused my upstream sensor to go bad or is this a normal code confirming a bad catalytic converter? Is my situation progressively getting worse? Any and all assistance is greatly appreciated.
Thank you, all, for taking the time to read this.
- southsidesmoka
My truck threw DTC P0420, today. Additionally, it's been carrying P0430 for several weeks. If I'm not mistaken, the P0430 is pointing to the catalytic converter. I ran some Cata-Clean through it with disappointing results.
Thank you, all, for taking the time to read this.
- southsidesmoka