Lambda Adaptation

Lambda Adaptation
Lambda adaptation serves the purpose of compensating for component tolerances that influence the mixture and aging effects.

Factors such as secondary air and fuel pressure also have an effect on lambda adaptation and are, in part, also compensated.

For this reason, exact intervention limits in the case of fault cannot be specified.

Lambda adaptation differentiates between idle (additive) and partial load (multiplicative) mixture adaptation:

- Idle adaptation is effective at idle speed and in the range close to idle speed. Its influence decreases as the engine speed increases (an important factor is secondary air for instance).

- Partial load adaptation is effective over the entire characteristic map range (an important factor is the fuel pressure for instance)