VOLVO
ECM-P008921 - Fuel Pressure Regulator Performance. General Signal Failures. Signal too low
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (6)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
This fault code concerns the control signal for the fuel pressure valve. It is set when the control module detects that the signal is too low. The fault lies primarily in the fuel pressure control valve.
Possible causes
- Damaged fuel pressure control valve
What you can do
- 1Check the connector at the fuel pressure control valve for contact resistance and oxidation
- 2If you have a diagnostic tool: activate the fuel pressure control valve and check that it responds
- 3Have a workshop check the fuel pressure control valve and replace it if needed
Symptoms you may notice1
- No noticeable symptoms for the driver
What the fault can affect1
- The fuel pump is controlled using a calculated value instead of the measured one
General guidance for car owners. Diagnosis on the car can point to a different cause.