check engine AUDI A8 1995 D2 / 1.G AHA ATQ Engines Secondary Air System Workshop Manual

AUDI A8 1995 D2 / 1.G AHA ATQ Engines Secondary Air System Workshop Manual A8 1995 D2 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/993/w960_993-0.png AUDI A8 1995 D2 / 1.G AHA ATQ Engines Secondary Air System Workshop Manual

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AUDI A8 1995 D2 / 1.G AHA ATQ Engines Secondary Air System Workshop Manual 26-13
      
Flow test 
      During the flow test, the oxygen sensor control is 
switched off (engine runs rich at that time). At the 
same time the secondary air injection pump is 
switched on, inje