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Home >> Audi >> 2007 >> A3 Quattro (8PA) V6-3.2L (BUB) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Secondary Injection Combination Valve, Checking For Function and Leaks
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Secondary Injection Combination Valve, Checking For Function and Leaks






Secondary Injection Combination Valve, Checking for Function and Leaks

Procedure

• Vacuum lines and hose connections free of leaks.

• Vacuum lines not plugged.

- Disconnect the secondary air hose - arrow - and connect the assisting hose into the hose leading to the secondary air combination valve.





- Blow lightly into assisting hose by mouth, do not use compressed air.

• Secondary Air Injection (AIR) combination valve must be closed, it must not be possible to blow through.

- Blow more strongly into assisting hose by mouth, do not use compressed air.

• The Secondary Air Injection (AIR) combination valve must open, it must be possible to blow through.

- If the switch point cannot be detected, replace secondary air injection (AIR) combination valve. Refer to => [ Secondary Air Injection (AIR) Combination Valve ] Secondary Air Injection (AIR) Combination Valve.
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