Difference between revisions of "P00AF/000175"

Revision as of 16:24, 3 October 2019

Defective N75
N75 connector plugged into the wrong 2 wire component. Check wiring diagram to confirm
Vacuum leak or low vacuum
VNT sticking or seized
G581 sensor

Verify N75 is working to design, use Output Testing
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 vacuum lines are good, check engine vacuum at idle
Test VNT and G581, apply vacuum to VNT and watch MVB 120.4
- Engine off, no vacuum 120.4 should read about 3.5V
- Engine Off, apply 17 Inches of mercury, 120.4 should drop to about .7V
- Engine at idle, 120.4 should read about .7V
- If 120.4 voltage doesn't alter, VNT may be seized or G581 failed

When found in Gasoline engines such as the CHHB (or similar EA888 engines) this thread may be helpful: Case Study: 15202 - Actuator Module for Turbocharger 1 P00AF 00

@@ Line 28: / Line 28: @@
 ==== Special Notes ====
-* On some TDI engines, the Vacuum Diaphragm/G581 unit can be purchased as a separate part from dealer.
+* On some '''TDI''' engines, the Vacuum Diaphragm/G581 unit can be purchased as a separate part from dealer.
-* [[2.0L CR TDI]] owners may find the following threads helpful:
+* '''[[2.0L CR TDI]]''' owners may find the following threads helpful:
 ** http://forums.ross-tech.com/showthread.php?404-009571-Turbocharger-Boost-Control-Position-Sensor-Circuit-P2563
 ** http://forums.ross-tech.com/showthread.php?4891-2009-TDi-Having-issues-with-Turbo-seeking-some-advise
 *** Post #10 includes a YouTube video link.
+* When found in '''Gasoline'''  engines such as the CHHB (or similar EA888 engines) this thread may be helpful:  [https://forums.ross-tech.com/showthread.php?19866-Case-Study-15202-Actuator-Module-for-Turbocharger-1-P00AF-00-109-Stuck Case Study: 15202 - Actuator Module for Turbocharger 1 P00AF 00]
 __FORCETOC__
 [[Category:Fault Codes]]