Secondary Air Injection Combination Valves, Checking for Function and Leaks

Secondary Air Injection Combination Valves, Checking for Function and Leaks

Procedure

• Hose connections properly sealed.

- Pull rear engine cover off - arrows -.





- Disconnect air guide hose - 3 - from Secondary Air Injection (AIR) combi-valve.





• The left combination valve for Secondary Air Injection (AIR) is depicted in the illustration.

• Ignore items - 1 and 2 -.

- Connect an assisting hose - arrow - to Secondary Air Injection (AIR) combi-valve.





- Blow into the assisting hose using light pressure (do not use pressurized air).

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

- Blow into the assisting hose using higher pressure (do not use pressurized air).

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

If the switching point is not recognized:

- Replace Secondary Air Injection (AIR) combi-valve. Refer to: Left => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve, right => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.