F0: Data List - Test Step 19 O2 Block Learn 2 Opel Senator B

Note

Via the O2 BLOCK LEARN 2, learned multiplicative deviations from the ideal mixture condition (e.g. by alterations in the density of the air, alterations in the density and quality of the fuel, injection valve errors, etc.) are intercepted by the control unit and stored in the permanent memory.

The learning process takes place only if the oxygen regulation is active and the engine is operating normally.

The multiplicative correction factor operates in the whole learn block range but dominates mainly in the central to high engine speed ranges. With the O2 BLOCK LEARN 2 an evaluation of the learned values of the system can be made.

To evaluate O2 BLOCK LEARN 2, O2 INTEGRATOR must also be consulted.

If the O2 BLOCK LEARN 2 continues to display a marginal value (no value change over a considerable period of time), O2 INTEGRATOR must be observed. If this also lies outside the tolerance range, a statement can be made about the mixture condition of the engine.

Trouble-shooting: Nominal Value: Cause of Trouble:

With

· O2 BLOCK LEARN 2 < 112 STEPS 112 to 160 STEPS · See test step 17

and System becomes leaner, mixture too rich

O2 INTEGRATOR < 124 STEPS

· O2 BLOCK LEARN 2 > 160 STEPS 112 to 160 STEPS · See test step 17

and System becomes richer, mixture too lean

O2 INTEGRATOR > 132 STEPS