Fejlkodeindeks · medium
P1157
Heated oxygen sensor (HO2S) cylinders - indicates rich
Heated oxygen sensor (HO2S) cylinders - indicates rich
Common causes
- See factory diagnostic procedure / wiring diagram for this code
Quick checks
- Confirm freeze-frame and conditions when the code set
- Compare live sensor values vs expected (unplugged/biased sensors are common)
Typical fixes
- Check fuel pressure regulator
- injectors