Difference between revisions of "P00AF/000175"
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*Verify N75 is working to design, use Output Testing | *Verify N75 is working to design, use Output Testing | ||
| − | * Verify the N75 connector plugged into N75 per the factory level wiring diagram | + | * 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 | *Verify vacuum lines are good, check engine vacuum at idle | ||
*Test VNT and G581, apply vacuum to VNT and watch MVB 120.4 | *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, no vacuum 120.4 should read about 3.5V | ||
** Engine Off, apply 17 Inches of mercury, 120.4 should drop to about .7V | ** Engine Off, apply 17 Inches of mercury, 120.4 should drop to about .7V | ||
| − | ** Engine at idle, 120.4 should read about | + | ** Engine at idle, 120.4 should read about .7V |
** If 120.4 voltage doesn't alter, VNT may be seized or G581 failed | ** If 120.4 voltage doesn't alter, VNT may be seized or G581 failed | ||
==== Special Notes ==== | ==== Special Notes ==== | ||
| + | '''TDI''' | ||
| + | * 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: | ||
| + | ** 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. | ||
| + | |||
| + | '''Gasoline''' | ||
| + | * 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] | ||
| + | ** The Actual and Specified values on this page should be helpful as well: [[18995/P2563/009571]] | ||
| + | |||
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| − | |||
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__FORCETOC__ | __FORCETOC__ | ||
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Latest revision as of 14:32, 22 November 2023
000175/P00AF - Actuator Module for Turbocharger 1: Stuck
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
- Glow Plug light flashing
- Reduced engine performance
Possible Causes
- 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
Possible Solutions
- 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
Special Notes
TDI
- 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:
Gasoline
- 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
- The Actual and Specified values on this page should be helpful as well: 18995/P2563/009571