VOLVO
ECM-P049C00 - Exhaust Gas Recirculation B Flow Excessive Detected. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (2007–), V70 (2008–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.