VOLVO
ECM-2504 - 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 engine control module (ECM) compares the fuel pressure in the rail with the desired value. If the pressure goes above that value, the code is set. The cause may be a blocked return line or a damaged sensor or valve.
Possible causes
- 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
- 2Make sure the fuel return line is not blocked, for example by kinks or pinching
- 3Check the plugs of the pressure sensor and the pressure control valve 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 when it is activated
- 5Have a workshop check the return line and the pressure sensor, and replace the fuel pressure control valve if needed
Symptoms you may notice2
- 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.