Got mystery p0420 code that pops up and disappears from time to time. Replacing converter and 02 sensors didn't help. I did so many tests and still have no idea what is wrong. Only in Dodge.
Our check engine light has been coming off & on for the past month or so. We are in the market for a new van and, while having our Dodge Grand Caravan appraised last night, they let us know what the engine light was indicating: that our catalytic converter needs to be replaced.
- Alicia C.,
Durham, NC, US
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Got mystery p0420 code that pops up and disappears from time to time. Replacing converter and 02 sensors didn't help. I did so many tests and still have no idea what is wrong. Only in Dodge.
- Mat K., Stamford, CT, US