P0420 Catalyst System Efficiency Below Threshold (Bank 1)
13-Sep-2006, 08:54 PM
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P0420 Catalyst System Efficiency Below Threshold (Bank 1)
as the topic says im throwin a P0420 Catalyst System Efficiency Below Threshold (Bank 1) code right now
i believe its my cat being a bit clogged with oil as i was leakin oil into my spark plug tubes and got into the combustion chamber..
im pretty sure i need a new cat but what do u guys think about the O2 sensors? think i have to get a new one as well?
i believe its my cat being a bit clogged with oil as i was leakin oil into my spark plug tubes and got into the combustion chamber..
im pretty sure i need a new cat but what do u guys think about the O2 sensors? think i have to get a new one as well?
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