F0: DATA LIST
| No. | Tech 1 Display | Conditions for checking | Nominal value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 41 | 02 BLM PART THR. | X 20 SE, X 22 XE engine only: | |||
| Engine running in partial load range, operating temperature | 118 to 138 steps | 13, 38, 39 | - |
Note:
Via the 02 BLM PART THR., learnt multiplicative deviations from the ideal mixture (e. g., caused by changes in the air density; changes to the density and quality of the fuel; injection faults, etc. ) are detected by the control unit and stored in the permanent memory.
The learning process only occurs when oxygen control is active and the engine is operating normally.
The multiplicative correction factor is effective in the entire characteristic curve range, but predominantly in the medium and upper engine speed ranges.
Using the 02 BLM PART THR., the values learnt by the system can be evaluated.
To evaluate a deviation of the 02 BLM PART THR., the 02 INTEGRATOR must be observed. If this is also outside the tolerance range, a statement about the engine mixture condition can be made.
· See test step 39