VOLVO
ECM-P01921F - Fuel Rail Pressure Sensor "A" Circuit Low. General Electrical Failures. Circuit intermittent
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
8 ModelleS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (8)
- Volvo S60 (2011–)2014–2015Nur Motor: D4204T5
- Volvo S80 (2007–)2014–2015Nur Motor: D4204T5
- Volvo V40 (2013–)2015Nur Motor: D4204T14
- Volvo V40 Cross Country (2013–)2015Nur Motor: D4204T14
- Volvo V60 (2011–)2014–2015Nur Motor: D4204T5
- Volvo V70 (2008–)2014–2015Nur Motor: D4204T5
- Volvo XC60 (2009–)2014–2015Nur Motor: D4204T5
- Volvo XC70 (2008–)2014–2015Nur Motor: D4204T5
Was bedeutet der Fehlercode?
The control module (ECM) checks the four pressure sensors in the injectors against a lowest permitted value. The code is set when any of the readings falls below that lowest value. The fault is intermittent, meaning it is temporary, and it may be gone when you check the car.
Mögliche Ursachen
- Loose connection or oxidation in the connectors to the injectors
- Faulty pressure sensor in one of the injectors
Was Sie tun können
- 1Check the injector connectors for looseness and oxidation
- 2Read and clear the code, then start the engine to see whether it returns
- 3If you have a diagnostic tool: read the pressure from each injector in live data and see whether any one clearly differs from the others
- 4If the fault remains, a workshop with diagnostic equipment should check the pressure sensor in the injector that differs
Symptome, die Sie bemerken können2
- Uneven idle
- The engine may stall, both at idle and while driving
Was der Fehler beeinflussen kann1
- The value from pressure sensor 4 is used instead
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.