Thread: Diagnose P0420 - HPT Scan Link

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#1 Re: Diagnose P0420 - HPT Scan Link
BillBoost37

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Turbo is the way to go.

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12-17-2014

Please read up on the 420, it's most likely caused by a bad or aftermarket cat.

I drink..so consider that when reading my posts.

2010 Audi A6 Dual IC's

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