Low Pressure Fuel System Sensor Circuit
The ECU detects a general fault in the low-pressure fuel system pressure sensor circuit. Without a valid signal the ECU cannot verify lift-pump pressure or fuel rail pre-pressure.
Affected components
- Low pressure fuel sensor
- Fuel pump
Common causes
- High likelihood: Defective low-pressure sensor
- Medium likelihood: Wiring or connector fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.