Secondary Injection Combination Valves, Checking For Function and Leaks

Secondary Injection Combination Valves, Checking for Function and Leaks

Special tools, testers and auxiliary items required

• Hose Clamps Up to 25 mm Dia. (3094) for the left Secondary Air Injection (AIR) combination valve

• Hand Vacuum Pump (VAS 6213)

Procedure

• Vacuum lines and hose connections free of leaks.

• Vacuum lines not plugged.

Left secondary air injection (AIR) combi-valve:





- Remove the air guide tube - arrows -.

• Ignore - 1 -.

- Remove the rear vacuum hoses - 1, 2, 4 - from the intake manifold.





- Remove wiring connection from intake manifold - arrows - and lay back with hoses connected.

• Ignore - 3 -.

- Remove the Secondary Air Injection (AIR) hose - arrow -, pull it up and clamp it off with (3094).





- Disconnect the vacuum hose from the secondary air injection (AIR) combination valve.





- Connect the (VAS 6213) to the secondary air injection (AIR) combination valve vacuum connection.

- Disconnect the secondary air injection (AIR) hose the marked location - arrow -.





- Blow into the secondary air injection (AIR) 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.

- 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 left secondary air injection (AIR) combination valve does not react as described, replace it. Refer to => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve.

Right secondary air injection (AIR) combi-valve:





- Remove the right secondary air injection combination valve. Refer to => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.

- Connect the (VAS 6213) to the right Secondary Air Injection (AIR) combination valve vacuum connection - 1 -.

- 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 right secondary air injection (AIR) combination valve does not react as described, replace it. Refer to => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.

Assembling

Assembly is in reverse order of removal, note the following:

- Install the right secondary air injection combination valve. Refer to => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.