VOLVO
ECM-1123 - Fuel temperature sensor. Signal too low. Intermittent fault
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS40 (1996–2004), V40 (1996–2004)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The engine control module has intermittently received a signal from the fuel temperature sensor that is too low, or has found a fault on its wiring. Engine management can then use a fixed value instead of the real fuel temperature. The fault is intermittent and may not be present right now.
Mulige årsaker
- Signal wire short-circuited to ground
- Signal wire short-circuited to supply voltage
- Open circuit in the signal wire
- Fault in the injection pump
Hva du kan gjøre
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check the fuel temperature sensor connector for play, contact resistance and oxidation
- 3Use a multimeter to check that the signal wire is not broken and has no contact with ground or voltage
- 4If the fault remains, have a workshop with diagnostic equipment check the sensor and the injection pump
Symptomer du kan merke1
- The malfunction indicator lamp comes on
Hva feilen kan påvirke1
- The engine control module uses a fixed value for the fuel temperature
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