Fuel injector injection amount learning

This function is used to learn the correct fuel injection amount for the vehicle injectors.
Note:
If all the injectors are replaced, this function shall not be run!
First, the injection quantity learning value will be reset. Then starts the learning. The idle speed will increase during the learning.
Test conditions:
Reset adaption values
Fuel injector injection amount learning
Procedure:
  1. Ignition on, engine off.
  2. Start the function.
  3. Press "OK" to reset the adaptation values.
  4. Start the engine and let it idle.
  5. Press "Continue" to start the learning.
  6. The function is done.