Fuel Rail/System Pressure - Too Low
1995-2005 Pontiac Sunfire 2.2L I4
Description
The fuel rail pressure is lower than the PCM commanded value. Common in direct injection and diesel systems.
Symptoms
- Check Engine Light
- Loss of power
- Engine stalling
- Long crank times
- Rough idle
Common Causes
- Weak fuel pump
- Clogged fuel filter
- Fuel pressure regulator failure
- Fuel line leak
- Faulty high-pressure fuel pump
Diagnostic Steps
- Check fuel pressure with gauge
- Inspect fuel filter
- Test fuel pump volume
- Check for fuel leaks
- Test fuel pressure regulator
Repair Notes
Replace fuel pump, filter, or pressure regulator as needed.
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
P0087 on Other Vehicles
Pontiac Aztek
2001-2005 3.4L V6
Pontiac Bonneville
1990-1999 3.8L V6
Pontiac Bonneville
2000-2005 3.8L V6
Pontiac Bonneville GXP
2000-2005 4.6L V8
Pontiac Bonneville GXP
2000-2005 4.6L V8 Northstar
Pontiac Bonneville SSEi
1992-1999 3.8L Supercharged V6
Pontiac Bonneville SSEi
1992-1999 3.8L V6 Supercharged
Pontiac Firebird
1993-1997 3.4L V6
Common Questions
What does code P0087 mean on a 1995-2005 Pontiac Sunfire?
P0087 stands for "Fuel Rail/System Pressure - Too Low". The fuel rail pressure is lower than the PCM commanded value. Common in direct injection and diesel systems.
What are the symptoms of P0087 on a Pontiac Sunfire?
Common symptoms of P0087 include: Check Engine Light, Loss of power, Engine stalling, Long crank times, Rough idle.
What causes P0087 on a 1995-2005 Pontiac Sunfire?
Common causes of P0087 include: Weak fuel pump, Clogged fuel filter, Fuel pressure regulator failure, Fuel line leak, Faulty high-pressure fuel pump.