Symptoms of P0093 OBD II Trouble Code
- Code set and malfunction indicator lamp illumination (check engine light)
- Engine will enter fail-safe mode and shut down within one minute
- Possible large loss of power above idle
Common Causes of P0093 OBD II Trouble Code
- Fuel injector failure
- Fuel line common rail leak
- Fuel pressure sensor malfunction
- Fuel pump or lift pump failure
- Fuel heater constantly on
- Fuel temperature sensor failure
- Leaks at any point in the high pressure circuit
- Electrical connector corrosion or seating problems
- Fuel pressure regulator malfunction
- Fuel filter plugged dropping the fuel line volume
- Injector pump leak
- Fuel control actuator failure
- Cascade overflow valve malfunction
- Short in the electrical harness at the injectors or to the ECM
- Fuel pressure limiting valve
- ECM failure