VOLVO
ECM-P263664 - Fuel Pump B Low Flow / Performance. Algorithm Based Failures. Signal plausibility failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
The fuel pressure control has reached its highest value, but the wanted fuel pressure still cannot be reached. The engine control module (ECM) regulates the pressure through the fuel pump control module with a PWM signal. Causes can be leaks, a faulty pressure sensor, a damaged pump or a damaged pump control module.
Possible causes
- Leakage in the fuel lines
- Damaged fuel pressure sensor
- Damaged fuel pump
- Damaged fuel pump control module
What you can do
- 1If the car has codes for the fuel pressure sensor or the atmospheric pressure sensor, fix those first
- 2Look for leaks in the fuel lines, both visible ones and at the connections
- 3Check the fuel filter for blockage
- 4If you have a diagnostic tool: read the fuel pressure in live data with the engine running and compare it with the pressure the engine control module requests
- 5If nothing is found, have a workshop with diagnostic equipment check the fuel pump and the control module
Symptoms you may notice4
- Check engine light comes on or behaves abnormally
- Driving feels poor or the car lacks power
- Engine stalls while driving, at unpredictable times or all the time
- Engine stalls at idle, at unpredictable times or all the time
General guidance for car owners. Diagnosis on the car can point to a different cause.