VOLVO
ECM-2222 - EGR converter. 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 fault is intermittent, meaning it comes and goes, and it concerns the signal wire to the EGR valve, which controls the return of exhaust gases. The engine control module sets the code when it finds a fault in the wire, such as a short to ground, an open circuit or a short to voltage. The EGR control is then switched off.
Mulige årsaker
- Signal wire short-circuited to voltage
- Defective EGR valve
- Signal wire short-circuited to ground
- Open circuit in the signal wire
Hva du kan gjøre
- 1Inspect the wire to the EGR valve for breaks, chafing and shorts to ground or voltage
- 2Check the EGR valve connector for contact resistance and oxidation
- 3Use a multimeter to check that the signal wire to the EGR valve is not broken and not shorted
- 4Have a diagnostic tool? Activate the EGR valve and check that it moves
- 5If the wire and connector are sound but the fault remains, have a workshop replace the EGR valve
Symptomer du kan merke1
- The malfunction indicator lamp comes on
Hva feilen kan påvirke1
- EGR control is switched off
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