VOLVO
ECM-2502 - Fuel pressure. Pressure too high
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (10)
- Volvo S60 (2001–2009)2001Engine D5244T only
- Volvo S60 (2001–2009)2002–2003, 2006Engine D5244T, D5244T2 only
- Volvo S60 (2001–2009)2004–2005Engine D5244T, D5244T2, D5244T3 only
- Volvo S80 (1999–2006)2001Engine D5244T only
- Volvo S80 (1999–2006)2002–2006Engine D5244T, D5244T2 only
- Volvo V70 (2000–2008)2001Engine D5244T only
- Volvo V70 (2000–2008)2002–2003, 2006Engine D5244T, D5244T2 only
- Volvo V70 (2000–2008)2004–2005Engine D5244T, D5244T2, D5244T3 only
- Volvo V70 XC / XC70 (2001–2007)2003–2006Engine D5244T only
- Volvo XC90 (2003–)2003–2006Engine D5244T only
What does this fault code mean?
The ECM reads fuel pressure in the rail. If the pressure is too high and the fault is active, the module reduces the fuel supply. Causes can be air in the fuel, a blocked return line, or a damaged sensor or valve.
Possible causes
- The car has run with an empty tank
- Air in the fuel
- Blockage in the fuel return line
- Damaged fuel pressure sensor
- Damaged fuel pressure control valve
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Look for fuel leaks in the fuel lines between the tank and the engine, since air in the fuel can come from there
- 3Check the plugs of the pressure control valve and the pressure sensor for contact resistance and oxidation
- 4If you have a diagnostic tool: activate the fuel pressure control valve and check that the fuel pressure in live data rises
- 5Have a workshop check the return line and the pressure sensor, and once the fault is fixed also replace the pressure safety valve, since high pressure may have damaged it
Symptoms you may notice4
- Noise from the engine, especially at idle
- The engine jerks
- The engine feels sluggish
- Engine speed is limited
What the fault can affect1
- Fuel supply is reduced for as long as the fault is active
General guidance for car owners. Diagnosis on the car can point to a different cause.