VOLVO
ECM-21FC - Long-term fuel trim, bank 2. Signal too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (1999–2006), XC90 (2003–)
Was bedeutet der Fehlercode?
This code is a collective code for fuel adaptation faults on bank 2. It is set when an underlying adaptation code has been stored in two consecutive driving cycles, and it always comes together with one of them. Although the code is named for a signal that is too high, the root fault is what needs to be found.
Mögliche Ursachen
- Consequential fault from an underlying fault code for adaptive lambda regulation on bank 2
Was Sie tun können
- 1Fix the root fault among the bank 2 adaptation codes first
- 2Clear the code once the root fault is fixed, and road test the car
- 3Have a diagnostic tool? Read all stored codes and see which bank 2 codes are stored at the same time
Symptome, die Sie bemerken können1
- The malfunction indicator lamp (MIL) comes on
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.