Difference between revisions of "P00AF/000175"
From Ross-Tech Wiki
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*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 | + | ** Engine Off, apply 17 Inches of mercury, 120.4 should drop to about .7V |
** Engine at idle, 120.4 should read about 7.V | ** Engine at idle, 120.4 should read about 7.V | ||
** 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 | ||
Revision as of 10:14, 14 June 2011
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
- Vacuum leak or low vacuum
- VNT sticking or seized
- G581 sensor
Possible Solutions
- Verify N75 is working to design, use Output Testing
- 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 7.V
- If 120.4 voltage doesn't alter, VNT may be seized or G581 failed