P0506

P0506

Diagnosis information - DME V8 DFI

Idle speed control at stop below limit value

Diagnostic conditions
- Engine idling > 20 s
- Vehicle not moving
- Engine not loaded
- Engine temperature > 60 °C (140 °F)
- No tank ventilation or tank ventilation diagnosis
- No secondary air diagnosis
- Altitude correction factor > 0.75 (altitude below 2450 m)
- No fault for speed signal, throttle potentiometer, engine temperature, intake air temperature, tank vent or tank ventilation system

Possible fault causes
- Throttle valve adjusting unit faulty