[1] Zero quantity calibration for the injector of cylinder 4: Upper learning range reached.

[1] Zero quantity calibration for the injector of cylinder 4: Upper learning range reached.

Test 1: Replace defective injector.

1. Replace defective injector.
Component Y76y4 (Fuel injector cylinder 4) is defective.
Tests conducted

- Compression test
Possible cause and remedy

- Replace component Y76y4 (Fuel injector cylinder 4).
Important notes

- Make a printout of the following screen page.
- An injector injection quantity adjustment must be performed after every injector replacement.
Communication with ECU required