Problems with engine light, power and speed on Polo 2014 - Possible cause and solutions?

Hi, I once had a similar problem with my 2012 Golf, I only have a bit of experience with cars but I took my car to the garage to have it checked. They found that the plug/cable from the valve was faulty. The repair cost me 95 euros. Could you please give me more information about your car, for example: mileage, last service etc.? Then I might be able to tell you more.

(Translated from German)

Hey, thanks for your answer! My Polo already has 85770 km on the clock and the last service was a few months ago. So could the problem be due to the mileage? What was it like with your Golf back then?

(Translated from German)

Hey, no problem, happy to help where I can! In your case, it could also be the tank ventilation valve, which is quite possible. In my Golf, this was a separate fault situation that arose due to the faulty connector/cable. However, it would also be a good idea to have the fault memory read out, as there are often several faults and not just one. The mileage of your Polo could also play a role. In general, it's always a good idea to have such problems clarified in the workshop at an early stage before they can lead to major defects. So, my tip: Go to the garage and have it checked!

(Translated from German)

Hey, thanks for the advice! I will definitely go to the garage and have my fault memory read out. Your recommendation has definitely helped me. I'm a bit worried about the mileage, but I hope it won't be a big problem. It turned out to be a minor fault with your Golf. I hope my Polo has similar luck. Thanks again for your help!

(Translated from German)