VOLVO
ECM-P040422 - Exhaust Gas Recirculation Control Circuit Range/Performance. General Signal Failures. Signal too high
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Pokaż modele wg rocznika i silnika (6)
- Volvo S80 (2007–)2007–2009Tylko silnik: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Tylko silnik: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Wszystkie silniki oprócz: B6304T2
- Volvo XC70 (2008–)2008Wszystkie silniki oprócz: B6324S
- Volvo XC70 (2008–)2009Tylko silnik: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Tylko silnik: D5244T18, D5244T5
Co oznacza ten kod błędu?
Although the code is named as a too-high signal, the condition is a flow that is too low in the EGR system. The ECM monitors the EGR function and sets the fault when the flow is too low. The cause may be an air leak, or a blocked or damaged EGR valve.
Możliwe przyczyny
- Air leak in the intake system
- Blocked or clogged EGR valve
- Damaged EGR valve
Co możesz zrobić
- 1Check the intake system for air leaks, such as loose hoses and connections
- 2Check that the EGR valve or its connections are not clogged with soot
- 3Clean the EGR valve of dirt and soot if needed
- 4Look for damage to the seals of the EGR valve
- 5If you have a diagnostic tool, read the EGR valve position at idle and see that it changes under throttle
- 6If the fault remains, have a workshop check the EGR valve and the intake system
Objawy, które możesz zauważyć2
- The engine performs worse than usual
- The idle is uneven
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.