P0506 Diagnostic Trouble Code Discussion for April 2020
Idle Speed Low Performance
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| Help Request | Posted | |
| 2008 GMC Sierra 3500 HD SLE 6.6L Stall VIN: 1GDJK34668 P0506: Idle speed low. ... know...) Stalling cold and EGR plugged. Customer had EGR deleted (not by us). Intake air heater disconnected and P154B code when vehicle was purchased. We tested and found intake air heater faulty (part 2 weeks away). Vehicle still stalling after EG... |
April 29, 2020 |
