Chevy Silverado Code P0430

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My service engine soon light came on on my 2000 chevy silverado with1997 chevy silverado vac hose routing: wont pass smog code p0430. P0304 p0430 p0121 p0174 p0446 chevy p0303 silverado code p0010 symptoms ford f150 deville explorer impala rogue suburban acadia gmcP0430- catalyst system efficiency below threshold (bank 2).

Silverado p04301998 chevy silverado didnt pass smog. p0430 code .