Picked up a S5 yesterday afternoon, relatively reasonable kms, very clean body, and a messy interior. Anyway, I was just wondering if anyone could sort of point me in the right direction as to what I can do about the following issue: After about 20-25 minutes of driving, my CEL comes on and every time I give it throttle after that, the car hesitates and studders somewhat violently. If I shut the car off and restart it, CEL goes away and car drives fine... for about another 20-25 minutes. Throttle Position Sensor?

 

Check the Omp and check your codes

 

t2 or na?

 

I am going to say OMP going into limp mode.