Air throttle
â–¶ How to fix
- Check fuses - Check if trottle potentiometer 1 is short circuited to ground - Perform general trouble shooting on throttle system - Replace throttle unit - Change EGC4
What you'll see
No driver-visible symptom recorded.
System reaction
- Throttle will act according to default value. It might lead to engine stop or Limp home mode will be activated
Diagnostic depth
Detection
- Comparing voltage from both potentiometers measuring throttle position. One or both potentiometers are faulty.
Possible cause
- The position of the throttle is measured with two potentiometers, their values do not match - Supply of throttle potentiometers is faulty