Hey! I have an a4 b8 2008. I recently got check engine light for P2100 and P0122.
after a good read on different forums, i ended up replacing the full throttle body as a solution. This included the relearning sequence etc.
for the time being i have no check lights, so that’s good. But on my OBDII reader i look at ‘throttle position’ as a guideline to how the swap is doing.
This is showing 84.5% at idle. When i push the pedal it goes down to an appropriate level (equivalent of the amount pushed down on the pedal) but when i release, it goes back up to 84.5%.
So what i’m asking here is, are these normal values? As I presume the flap is moving as it should following the numbers when pressed. To me it seems like an electronic issue with the brain or some other sensor.
Any thoughts about this?
thanks in advance!
Sincerely Jon