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P0492 Audi -

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good day

please tell me what to do or what part to replace?
Thanks in advance.

Vehicle: audi 2009 Q5 FSI 3.2 quattro AMT 4WD

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P0492 Secondary air system insufficient flow

This code is for cold start up condition, there is no drivabilty problem noticed, What often happens is the secondary air injection hose usually breaks loose from its connection  , and just reconnect.

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