Passat Wagon L4-1.9L DSL Turbo (AHU) (1997)
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EGR Valve: Testing and Inspection
Engine Code 1Z
Special Tools, Testers And Auxiliary Items:
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US8026 Hand vacuum pump
Test Sequence:
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Disconnect vacuum nose from EGR valve.
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Connect US8O26 hand vacuum pump to EGR valve.
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Operate vacuum pump.
The diaphragm rod must move toward vacuum connection. Observe diaphragm rod via opening (arrow)
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Disconnect US8026 hand vacuum pump from EGR valve.
Valve must audibly close (diaphragm rod moves toward intake manifold)
