VOLVO
ECM-P049C00 - Exhaust Gas Recirculation B Flow Excessive Detected. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The code indicates that the flow through the EGR system is too large. The engine control module (ECM) monitors EGR control and sets the code when a fault is found in the EGR valve or its wiring. The fault is checked with the engine running, and the car may show no symptoms to the driver.
Mulige årsaker
- Contact resistance, looseness or oxidation in the connections to the EGR valve
- The EGR valve sticks because of dirt or soot
- Break in the wire to the EGR valve
- Air leak in the intake system
- Damaged EGR valve
Hva du kan gjøre
- 1With the ignition off, inspect the intake system for air leaks and damage
- 2Check the fuses for the EGR system. Their location is given in the owner's manual
- 3Check the connectors to the EGR valve for looseness and oxidation, and remedy as needed
- 4Clean the EGR valve of dirt and soot and check that it does not bind
- 5Use a multimeter to check that the wire to the EGR valve has no break
- 6Replace a damaged EGR valve, have a workshop adapt it and clear the code
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.