Hey Gdaniele88,
You have a problem with an oxygen sensor P2626 Heated oxygen sensor 1, bank 1 so the sensor needs to be replaced, here is a guide that will show you how to do it yourself.
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
Here is the location it is the first sensor on bank one which is where #1 cylinder lives.
Here are some diagrams that have giving us on the sensor location.
Please let us know what you find so it will help others.
Best, Ken
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Tuesday, December 6th, 2016 AT 4:57 PM