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Discussion Starter · #1 ·
So I have a 2002 Dakota 4.7 4x4 and just started to get the 0420 code for Catalytic converter not working well enough. I looked up some options to put a spacer on the sensor after the cat, or even cleaning the cat( really, take it all out and clean it, not likely) Any of you have other ideas to clear this code and make it not throw the code....?
Of course I am in California also and due for a smog check next month.
Thanks for your advice in advance.
 
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