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Does anyone know how to by-pass the Secondary Air Injection System on a 4.2?
My question is this: How do you bypass this useless system (the cats warm up real fast so I do not get it), but the tricky part is how do you keep your systems ECU from alerting on it? The check engine light is the main issue here as well as the ECU diagnostics. In the part of Texas where I...- Texas-A6-4.2
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- Forum: A6/S6/Allroad forum (C5 Chassis)