VOLVO
ECM-4412 - Fuel quantity regulation. Signal faulty. Intermittent fault
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleS40 (1996–2004), V40 (1996–2004)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The engine control module compares the desired fuel quantity with the actual quantity, and the fault code is set when the difference becomes too large. The fault is intermittent, meaning it comes and goes. It can be caused by a short circuit in the signal wire, an open circuit or a defective injection pump, and the fuel supply is then shut off by the fuel shut-off valve.
Możliwe przyczyny
- Signal wire short-circuited to supply voltage
- Signal wire short-circuited to ground
- Open circuit in the signal wire
- Defective injection pump
Co możesz zrobić
- 1Check the injection pump connector for contact resistance and oxidation
- 2Look for chafed wiring to the injection pump
- 3Use a multimeter to check that the signal wire is intact and has no contact with positive or ground
- 4Have a workshop check the power supply to the injection pump from the system relay
- 5Since the fault is intermittent it may come and go, so clear the fault code after the repair and test drive the car
Objawy, które możesz zauważyć2
- Malfunction indicator lamp (MIL) is on
- The engine does not start
Na co może wpływać usterka2
- Fuel supply is shut off by the fuel shut-off valve
- Fuel regulator is switched off
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.