Good afternoon, gents! I am seeking a little advice here. I am more of a 3-series enthusiast, however I own a 130i now. (70k miles)

The car has some symptoms:
* ticking noise from valvetrain area
* occasional misfire and shivers

so I went to a friend, he has a professional diagnostics tool (he sells them to garage franchises)

First I was reviewing "Idling Quality" data stream, here it is:

20221026_174836.jpg

And all of the sudden "pop!" the revs jumped to 900 and the "check engine" line came on.


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So I quickly did the "health scan" and found this
2A38 Valvetronic motor fault: Sluggish movement or Open circuit.
20221026_175009.jpg
I would like to assume that is a fault in the motor itself only however I am concerned that in valve timing the trouble does not come alone.

Thank You for the attention!