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Just got a CEL this morning, and my cheap OBD scanner comes up with a P0430 code only. Since no other codes come up, should I assume the worst that the cat is dead? Or should I take it to a place like autozone and have the code read to see if there is another code that may be present that mine doesn’t see? If the converter has to be replaced, does anyone have an idea on cost for this?

Sorry about the hundred questions.

Adam
 

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Can be many things from fuel system issue to clogged catalytic converter, but more commonly an issue with one of the O2 sensors. Remove them and check for carbon buildup.
 
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