P0088
Fuel Rail/System Pressure - Too High
2004-2016 Aston Martin DB9 6.0L V12
High SeverityPowertrainGeneric (SAE)
Description
The fuel rail pressure is higher than the PCM commanded value.
Symptoms
- Check Engine Light
- Hard starting
- Rich running
- Injector damage risk
- Black exhaust smoke
Common Causes
- Faulty fuel pressure regulator
- Restricted fuel return line
- Stuck fuel pressure relief valve
Diagnostic Steps
- Monitor fuel pressure with scan tool
- Test fuel pressure regulator
- Check return line for restriction
- Inspect relief valve
Repair Notes
Replace fuel pressure regulator or clear fuel return restriction.
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
P0088 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 P0088 mean on a 2004-2016 Aston Martin DB9?
P0088 stands for "Fuel Rail/System Pressure - Too High". The fuel rail pressure is higher than the PCM commanded value.
What are the symptoms of P0088 on a Aston Martin DB9?
Common symptoms of P0088 include: Check Engine Light, Hard starting, Rich running, Injector damage risk, Black exhaust smoke.
What causes P0088 on a 2004-2016 Aston Martin DB9?
Common causes of P0088 include: Faulty fuel pressure regulator, Restricted fuel return line, Stuck fuel pressure relief valve.