I GET CODE PO420 CATALYST SYSTEM EFFICIENCY ...

2003 Nissan Altima

Tiny

Anonymous

November, 29, 2012 AT 8:54 AM

I get code Po420 catalyst system efficiency below threshold bank 1

1 Answer

Tiny

caradiodoc

November, 29, 2012 AT 9:14 AM

Replace the driver's side catalytic converter.

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