P0420 code?
#1
P0420 code?
Hey guys,
I have a P0420 code by itself, no other codes with it. From what I have read, most people say a P0420 code by itself means a bad cat. However, I replaced both my cats with used OEM ones I bought here on the forum, and I believe they have less than 40k on them. Could this be an 02 sensor problem? Loose gas cap problem?
I have a P0420 code by itself, no other codes with it. From what I have read, most people say a P0420 code by itself means a bad cat. However, I replaced both my cats with used OEM ones I bought here on the forum, and I believe they have less than 40k on them. Could this be an 02 sensor problem? Loose gas cap problem?
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