Secondary Air Injection Combination Valves, Version 2, Checking For Function and Leaks

Secondary Air Injection Combination Valves, Version 2, Checking for Function and Leaks

Special tools, testers and auxiliary items required

• Hand Vacuum Pump (VAS 6213)

Procedure

- Remove the vacuum hose - 3 - from the secondary air injection combination valve - 2 -.





- Remove the secondary air hose - 1 - by pressing the release buttons.

- Connect the (VAS 6213) to the vacuum connection - 1 - on the secondary air combination valve that will be tested.





- Connect a suitable assisting hose to the secondary air combination valve - 2 -.

- Blow lightly into the 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.

- Run the hand vacuum pump to generate a vacuum.

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

- If the secondary air combination valve does not react as described, replace it, refer to => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve, => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.