Low Pressure Fuel System Sensor Circuit Range/Performance
The signal of the low-pressure fuel sensor does not match the expected value during operation. Pressure does not rise as expected when the lift pump is commanded.
Affected components
- Low pressure fuel sensor
- Fuel pump
- Fuel filter
Common causes
- High likelihood: Sensor drift
- Medium likelihood: Clogged fuel filter
- Low likelihood: Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
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.