Just had my 2000 Impala scanned at Advance Auto Parts and I have a code P0410. The book he had told us what the code was but not what it means. I now know it means a problem with part of the emission control system. Is this something only the dealer can fix? Is it required on this car or can the code be reset/blocked. Does this malfunction affect other things on the engine? Money is too tight to just go trying things.