[Mickeadel]

Motorlampan började lysa idag, då satte jag i felkodsläsaren och de står: ECM-262A, Long-Term Fuel trim.

Vad menas med detta,vad borde det vara för fel?
LMM,Lamdasong? försökt at hitta något läkage men utan resultat...

Någon som kan hjälpa en "Okunnig"..

[andersuw]

VIDA säger följande om felkoden ifråga:

Condition
The control module receives information from the heated oxygen sensor (HO2S) about the fuel / air mixture when idling at both the lower and upper part-load range. If the fuel / air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. Diagnostic trouble code (DTC) ECM-262A will be stored when the long-term trim must be adjusted almost to maximum in the idle range.

Substitute value
none

Possible source

Upper limit:
intake air leakage
exhaust system air leakage
defective heated oxygen sensor (HO2S)

Lower limit:
intake air leakage
high fuel pressure
leaking injectors
defective mass air flow (MAF) sensor
contaminated engine oil
oil level too high
defective heated oxygen sensor (HO2S)

Fault symptom[s]
none