Rail pressure sensor
â–¶ How to fix
- Check gas low pressure sensor lines - Check plug and socket connection on gas low pressure sensor and EGC4 - Renew gas rail pressure sensor
What you'll see
No driver-visible symptom recorded.
System reaction
- Engine is starting bad or doesnt start at all
Diagnostic depth
Detection
- Voltage of rail pressure sensor is bigger than threshold: udsng_w > UDNGRMX
Possible cause
- Short-circuit between rail pressure sensor and battery