Catalytic Converters
VW New Beetle
VW Jetta

2001 volkswagen jetta GLS 1.8T DTC code shows Catalyst efficiency low on threshold does anyone know what could be wrong cause volkswagen dealer told me that the catalyst converter needs to be replaced?

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Wiki User
2008-10-05 05:00:58

replace o2 sensor behind cat.converter first, you probably do

need a catalyst, the emission warranty for that is 8 years or

80,000 miles minimum and may be longer on some models so if you

have less than 80,000 miles and the date car was originally

purchased on is less than 8 years ago the dealer will replace it at

no cost to you.

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