Is this normal? , Got a p0420 code , cat or oxigen sensor ?, jetta 2002 2.0, : r/Volkswagen
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Ошибка P0420. Коллектор. Обманка. — Volkswagen Polo Sedan, 1.6 л., 2014 года на DRIVE2
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P0420 Code: Catalyst System Efficiency Below Threshold (Bank 1)
Are you struggling to get rid of your P0420 code? Then you have probably come to the right article to solve your problem. The P0420 cod… | Engine control unit, Coding, Code
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2011 VW polo - engine code p0301, cyl 1 misfire. more in comments : r/MechanicAdvice