VOLVO
ECM-P233800 - Cylinder #3 Above Knock Threshold. General Failure Information. No sub type information
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleS80 (2007–), V70 (2008–)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The knock sensor on the engine block is used by the engine control module (ECM) to monitor combustion knock, and the ignition is adjusted when needed. The code is set once knocking from cylinder 3 rises above a certain level, and
Możliwe przyczyny
- The engine runs on a fuel/air mixture that is too lean
- Poor fuel quality, for example summer fuel in winter
- The engine is overheated
- The intake air temperature is too high
- The knock sensor is loosely fitted
- The knock sensor is damaged
Co możesz zrobić
- 1Check that the relevant fuses are intact; their locations are shown in the car's owner's manual
- 2Read and note the code, clear it and test drive to see whether it returns
- 3Check that the knock sensor is firmly fitted and that its connector is free from corrosion
- 4Check that the fuel in use is right for the season
- 5If you have a diagnostic tool, see whether the intake air temperature in live data follows the outside temperature
- 6If the fault returns, have a workshop with diagnostic equipment check the knock sensor and the engine's fuel/air mixture
Objawy, które możesz zauważyć1
- The engine performs poorly
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.