VOLVO
ECM-618C - Exhaust camshaft control during cold start
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
A cold start means an engine start when the engine control module (ECM) requests heating of the catalytic converter. During that phase, while the engine runs and cam control is on, the control module compares the actual exhaust camshaft position with the requested position. If they do not agree, the code is set.
Mulige årsaker
- Low oil pressure
- Poor engine oil quality
- Sticking reset valve for the exhaust camshaft
- A mechanical fault inside the VVT unit
Hva du kan gjøre
- 1Check the fuse that feeds the camshaft reset valve
- 2Check the engine oil level and quality, especially whether it contains contamination
- 3Have a workshop check the oil pressure
- 4Have a workshop remove and clean the reset valve and check the oil passages in the cylinder head
- 5If the fault remains after this, have a workshop replace the reset valve or check the VVT unit
Symptomer du kan merke4
- The malfunction indicator light comes on or behaves abnormally
- The engine is hard to start or cranks slowly
- Poor performance and lack of power
- The engine hesitates, surges or runs unevenly
Hva feilen kan påvirke1
- Camshaft control is switched off
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