Audi P1421: Secondary Air Injector Valve Circuit Short to Ground
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Audi P1422: Secondary Air Injector Valve Circuit Short to B+
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Audi P1424: Secondary Air Injector System (Bank 1) Leak Detected
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Audi P1425: Tank Ventilation Valve Short to Ground
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Audi P1426: Tank Ventilation Valve Open
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Audi P1432: Secondary Air Injection Valve Open
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Audi P1433: Secondary Air Injection System Pump Relay Circuit Open
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Audi P1434: Secondary Air Injection System Pump Relay Circuit Short to B+
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Audi P1435: Secondary Air Injection System Pump Relay Circuit Short to Ground
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Audi P1436: A/C Evaporator Temperature (ACET) Circuit Low Input
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