Those beloved fault codes again; 17972,17966,17521

[SilverS8]

Good evening

Just back from a 1000 mile trip, and even though the car felt mostly ok, I felt it lacked some power now and then

No lights in the dash but the fault codes when running VCDS below.


3 Faults Found:
17972 - Throttle Actuator (J338)
P1564 - 35-10 - Under-Voltage during Basic Setting - Intermittent
17966 - Throttle Actuator (G186)
P1558 - 35-10 - Electrical Malfunction - Intermittent
17521 - Oxygen (Lambda) Sensor; B1 S1
P1113 - 35-10 - Internal Resistance too High - Intermittent
Readiness: 0000 0000

Just to mention that my MAF is only a few months old (OEM PART)


17972 : I have done Throttle adaptation without any luck. I did look at my TB readings and find them a bit odd.
TV Sensor 1 16% (should be between 0-10 it says)
TV Sensor 1 at WOT is "only" 85%
Is my TB about to go on a permanent vacation?

17966 Same as the above? (found nothing on the forum for this code)

17521: Broken O2 pre-cat sensor? UK Driver or passenger side?
Any way to read meas.block to see if one is failing?

All tips apprecaiated