code P0420
20

Asked by sarah Aug 28, 2013 at 03:11 PM about the 2003 Volkswagen Beetle

Question type: Maintenance & Repair

my 2003 Volkswagen beetle is throwing a code of P0420 which is catalyst system efficiency below threshold bank 1. Do  have to change the catalytic converter or would it be safe to try to clean it?

1 Answer
70

Courtney answered 11 years ago

Its more likely that u have a air/fuel problem check out www.po420.com

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