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P0420 Volkswagen -

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How is it related with p0411

Vehicle: 2005 Volkswagen jetta 2.5

1 Answer

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Hi there,

The P0411 is for the secondary air injection pump. This is used to lower the emissions by adding air to the exhaust. The codes could be related because the converter isn't cleaning the exhaust enough. This could be because it's to rich witout any fresh air from the pump. I would get the pump working first.

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