Injector programming

Due to tolerances when manufacturing the injectors the injected fuel quantity may deviate between the actual and calculated fuel quantity. After manufacture these deviations are determined for every injector and a calibration value is determined, the value is converted to a code that is stamped on the injectors. This code is programmed in the engine control unit for each cylinder. Using these codes, the engine control unit corrects the calculated fuel quantity individually for each cylinder and thus improves engine operation and exhaust emissions. With this function, new calibration values can be entered in the engine control unit when replacing injectors or engine control unit.
The injector code is printed on the injector's main part. The code consists of 6 characters.
Note:
After engine programming, the engine's operation may temporarily be reduced until new adaptation values are learned.
Test conditions:
Procedure:
  1. Start the function.
  2. A dialogue box shows the programmed injector codes, press "OK".
  3. Select the injector to be programmed in the shown dialogue box, confirm with "OK".
  4. Enter the new injector code in the dialogue box, confirm with "OK" to finish programming. Note that capitals should be used.
  5. A dialogue box shows if the programming was successful or failed.