Secondary Injection Combination Valves, Checking For Function And Leaks - Engine Code(S): CBRA

Special tools and workshop equipment 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:

Fig 1: Air Guide Tube

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-- Remove the air guide tube -arrows-.

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

Fig 2: Identifying Rear Vacuum Hoses -1, 2 And 4-

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

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

Fig 3: Identifying Hose And Secondary Air Injection (AIR) Combination Valve Vacuum Connection

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-- Disconnect the vacuum hose from the Secondary Air Injection (AIR) combination valve.

Fig 4: Connecting Hand Vacuum Pump VAS 6213 To Secondary Air Injection (AIR) Combination Valve Vacuum Connection

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-- 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-.

Fig 5: Disconnecting Secondary Air Hose

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-- 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 SECONDARY AIR INJECTION LEFT COMBINATION VALVE .

Right secondary air injection (AIR) combi-valve:

Fig 6: Connecting Hand Vacuum Pump VAS 6213 To Right Secondary Air Injection (AIR) Combination Valve Vacuum Connection

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-- Remove the right secondary air injection combination valve. Refer to SECONDARY AIR INJECTION RIGHT COMBINATION VALVE .

-- Connect the Hand Vacuum Pump 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 .

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 .