VOLVO
ECM-B20A - Long-term fuel trim. Lower limit
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS70 (1997–2000), V70 (1997–2000)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
This code applies to the lower limit of the adaptive lambda control when the car runs on gas. It means the control module has reached its lowest correction value for the fuel mixture and cannot compensate any further. Gas operation is disabled, and the engine does not run on gas.
Mögliche Ursachen
- Blocked gas filter
- Low fuel level in the gas tank
Was Sie tun können
- 1Check that there is enough gas in the gas tank, since the code can be caused by a low gas level
- 2Make sure the hose from the intake manifold to the pressure regulator sits correctly, and that fittings and hose do not leak
- 3Check the gas filter and replace it if needed
- 4If the fault remains after the other checks, have a workshop check the gas pressure
- 5If you have a diagnostic tool: read the lambda value in live data with the engine idling on gas and check that it is stable and close to normal
Symptome, die Sie bemerken können1
- The engine does not run on gas
Was der Fehler beeinflussen kann1
- Gas operation is disabled
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.