I had a 420 code replaced cat and both o2 sensors. Put over 200 miles on it.
What is your question?
Still have a 420 code insuficent converter. Please advise
2 Replies
Popular Answer
ProfessorGon Feb 26, 2014
Run scan data to determine the operating function of the fuel trim, and correct it.
cardocIIIon Feb 27, 2014
Where did you get the catalyst, and was it CARB OBDII approved?
bikebanditon Mar 1, 2014
I bought it online from from auto warehouse the cheapest one not a good idea. Thanks
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A P0420 has nothing to do with fuel trim. The wonderful USA government mandated that the manufactures have to monitor the cat efficiently. I think cardoclll is correct, you don't have the proper cat on.
Thanks for the info I bought it online , the cheapest one I could find. Not a good idea