P0191
Fuel Rail Pressure Sensor Circuit Range/Performance
2004-2016 Aston Martin DB9 6.0L V12
Moderate SeverityPowertrainGeneric (SAE)
Description
The fuel rail pressure sensor reading is out of expected range.
Symptoms
- Check Engine Light
- Engine surge
- Poor performance
Common Causes
- Sensor fault
- Fuel pressure issue
- Restricted fuel line
Diagnostic Steps
- Compare sensor to mechanical gauge
- Check fuel pump
- Inspect fuel lines
Repair Notes
Replace sensor or repair fuel system.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0191 on Other Vehicles
Aston Martin DB11
2016-2024 4.0L V8 Twin Turbo
Aston Martin DB11
2016-2024 5.2L V12 Twin Turbo
Aston Martin DB7
1994-2003 3.2L I6 Supercharged
Aston Martin DBS Superleggera
2019-2024 5.2L V12 Twin Turbo
Aston Martin DBX
2020-2024 4.0L V8 Twin Turbo
Aston Martin Vantage
2005-2024 4.7L V8
Aston Martin Vantage
2018-2024 4.0L V8 Twin Turbo
Common Questions
What does code P0191 mean on a 2004-2016 Aston Martin DB9?
P0191 stands for "Fuel Rail Pressure Sensor Circuit Range/Performance". The fuel rail pressure sensor reading is out of expected range.
What are the symptoms of P0191 on a Aston Martin DB9?
Common symptoms of P0191 include: Check Engine Light, Engine surge, Poor performance.
What causes P0191 on a 2004-2016 Aston Martin DB9?
Common causes of P0191 include: Sensor fault, Fuel pressure issue, Restricted fuel line.