Passat V6-2.8L (ATQ) (2004)
Air Injection Control Valve: Testing and Inspection
Combination Valve, Checking
With Manufacturer's Scan Tool
Combi-valve, checking
Special tools and equipment
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Hand vacuum pump V.A.G 1390
Check conditions
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Vacuum pipes and hose connections free of leaks.
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Vacuum pipes not blocked/kinked.
Test sequence
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Pull vacuum hose off Y piece -arrow- of combi-valve to be checked.
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Connect hand vacuum pump VAG 1390 to vacuum hose of valve to be checked.
Note:
Do not use compressed air during the following check!
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Remove sound insulation