Post #10 includes a YouTube video link.2.0L CR TDI owners may find the following threads helpful:.On some TDI engines, the Vacuum Diaphragm/G581 unit can be purchased as a separate part from dealer.Vacuum Leak Intake Manifold Runner Position out of Specification Faulty Positive Crankcase Ventilation (PCV) System or Heating Element (N79). Malfunction Indicator Lamp (MIL) active Possible Causes. If 120.4 voltage doesn't alter, VNT may be seized or G581 failed 18711/P2279/008825 - Leak in Air Intake System Possible Symptoms.Engine at idle, 120.4 should read about.Engine Off, apply 17 Inches of mercury, 120.4 should drop to about.Engine off, no vacuum 120.4 should read about 3.5V.Test VNT and G581, apply vacuum to VNT and watch MVB 120.4.Verify vacuum lines are good, check engine vacuum at idle.Verify the N75 connector plugged into N75 per the factory level wiring diagram rather than any other component that may not set a fault code such as N79 (Positive Crankcase Ventilation (PCV) heating element).Verify N75 is working to design, use Output Testing.N75 connector plugged into the wrong 2 wire component.1 000175/P00AF - Actuator Module for Turbocharger 1: StuckÄ 00175/P00AF - Actuator Module for Turbocharger 1: Stuck Possible Symptoms.
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