Alternative Fuel Rail Pressure Sensor Performance
Alt fuel rail pressure sensor reading implausible.
Affected components
- Alt fuel rail pressure sensor
Common causes
- High likelihood: Sensor reading drifted
- Low likelihood: Sensor element aged beyond calibration window
- Low likelihood: Sensor element contaminated by oil, soot or coolant
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.