VOLVO
ECM-140B - Manifold pressure sensor. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (8)
- Volvo C30 (2007–2013)2007–2011Kun motor: B5244S4
- Volvo C70 (2006–2013)2006Alle motorer unntatt: B5254T3
- Volvo C70 (2006–2013)2007–2010Kun motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Kun motor: B5244S4
- Volvo S40 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo V50 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
Hva betyr feilkoden?
The fault concerns the intake manifold pressure sensor. It is set when the sensor circuit is shorted to ground or voltage, or when there is a break in the circuit. Although the code is labelled too low, a signal that is too high can also set it.
Mulige årsaker
- Signal wire shorted to voltage
- Open circuit in the signal wire
- Damaged intake manifold pressure sensor
- Signal wire shorted to ground
Hva du kan gjøre
- 1Read the fault code, clear it and test drive to see whether it returns
- 2If you have a diagnostic tool: with the engine running, a wrong signal now means a permanent fault, a correct one an intermittent fault
- 3Check the wire to the pressure sensor for breaks, chafing and shorts to ground or voltage
- 4Check the pressure sensor connector for contact resistance and oxidation
- 5If the connector and wire are fine: have a workshop check the pressure sensor
Symptomer du kan merke2
- Engine warning lamp comes on
- Poor throttle response
Hva feilen kan påvirke1
- A value from the MAF sensor is used instead of the pressure sensor
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