VOLVO
ECM-0303 - Misfire cylinder 3.Signal too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
3 ModelleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (14)
- Volvo C30 (2007–2013)2007–2009Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3
- Volvo C30 (2007–2013)2010Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3, B4204S4
- Volvo C30 (2007–2013)2011–2012Nur Motor: B4164S3, B4204S3, B4204S4
- Volvo C30 (2007–2013)2013Nur Motor: B4204S3, B4204S4
- Volvo S40 (2004–2013)2005Nur Motor: B4164S3, B4184S11
- Volvo S40 (2004–2013)2006Nur Motor: B4164S3, B4184S11, B4184S8
- Volvo S40 (2004–2013)2007–2009Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3
- Volvo S40 (2004–2013)2010Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3, B4204S4
- Volvo S40 (2004–2013)2011–2012Nur Motor: B4164S3, B4204S3, B4204S4
- Volvo V50 (2004–2013)2005Nur Motor: B4164S3, B4184S11
- Volvo V50 (2004–2013)2006Nur Motor: B4164S3, B4184S11, B4184S8
- Volvo V50 (2004–2013)2007–2009Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3
- Volvo V50 (2004–2013)2010Nur Motor: B4164S3, B4184S11, B4184S8, B4204S3, B4204S4
- Volvo V50 (2004–2013)2011–2012Nur Motor: B4164S3, B4204S3, B4204S4
Was bedeutet der Fehlercode?
The engine control module (ECM) counts misfires in cylinder 3 and stores the fault when the count exceeds what is allowed while driving. The cylinder is then not burning its fuel completely, which gives a rough running engine and reduced power. The fault should be corrected, since unburnt fuel can damage the catalytic converter.
Mögliche Ursachen
- Blocked or leaking injector for cylinder 3
- Fault in the EGR system
- Uneven compression in cylinder 3
- Air leakage in the intake system
- Faulty fuel pressure or damaged fuel pipes
- Faulty ignition system or contaminated fuel
Was Sie tun können
- 1Read out the fault code, erase it and road-test to see whether it comes back
- 2Check the fuel level in the tank and that the engine oil level is correct
- 3High-voltage ignition parts: keep clear while the engine runs. Check the cylinder 3 spark plug wells for moisture and damaged plug insulation
- 4Look for air leaks in hoses and the intake pipe, especially at the connections
- 5If you have a diagnostic tool, check in live data how the misfire counter for cylinder 3 behaves at idle compared with the other cylinders
- 6If the fault remains, have a workshop with diagnostic equipment measure the fuel pressure and compression and check the injector for cylinder 3
Symptome, die Sie bemerken können4
- The malfunction indicator lamp (MIL) is lit
- The engine misfires and does not fire on all cylinders
- The engine is difficult to start
- Poor performance and uneven idle
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.