volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Air Injection Control Valve|Testing and Inspection|Page 3109 > < Air Injection Vacuum Control Solenoid Valve|Service and Repair|Page 3105
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Air Injection Control Valve: Testing and Inspection

Combination Valve, Checking

The following procedure is used to test all combination valves.

Special tools, testers and auxiliary items required

‹› Hand vacuum pump (V.A.G 1390)

Test conditions

‹› Vacuum lines and hose connections free of leaks.

‹› Vacuum lines not plugged.

Test sequence

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Remove the vacuum hose from the combination valve.

-

Connect hand vacuum pump (V.A.G 1390) to combination valve vacuum connection.

-

Remove the air duct hose - arrow - from the Throttle Valve Control Module (J338) and position aside.

Air Injection Control Valve|Testing and Inspection|Page 3109 > < Air Injection Vacuum Control Solenoid Valve|Service and Repair|Page 3105