Škoda Karoq check engine light is on

Hey guys, I have a problem with my 2017 Skoda Karoq petrol engine. The car is really giving me the runaround. Black smoke from the exhaust when accelerating, engine light on, loss of power, irregular engine running, jerking when accelerating, poor fuel consumption - it's all there. I suspect that it could have something to do with the lambda sensor heater. Has anyone ever experienced something like this and is more familiar with it? How did you sort it out in the workshop? I'm grateful for any tips!

(Translated from German)

4 comment(s)

Hello, I had a similar problem with my Skoda Yeti 2010. I would classify my experience with cars as limited. My garage discovered that the engine control unit in my Yeti was faulty. It was replaced with a new one, which cost me 1000 euros. So that I can help you better, I would need some more information about your vehicle. What about normal maintenance? Has anything on the car been repaired or replaced recently? I hope this helps you.

(Translated from German)

Hi, thanks for your answer! Regarding your question, the last service was at 123456 km and I haven't had anything done since then. All repairs and replacement of parts, if necessary, were only carried out by the garage during regular maintenance. Hope that helps. Regards!

(Translated from German)

Hey, thanks for the info! Of course, there could be many causes. But since you haven't changed anything on your Karoq, it probably boils down to a component malfunction. I remember that before my Yeti was repaired, the mechanic carried out an engine diagnosis to localize the problem. Have you already had a fault readout carried out? Your guess about the lambda sensor could be correct, but if it was the lambda sensor heater, then fault code P0031 or P0037 should be stored. Just a thought, but it could also be the turbocharger. I had similar symptoms when the turbocharger broke, with irregular engine running and jerking when accelerating. A precise diagnosis is definitely the key to solving the problem. I would advise you to visit a workshop and have a fault memory read out. VG!

(Translated from German)

Hi, thanks for the advice! I haven't had a fault readout done yet, that seems like the next logical step. I will do that and hopefully it will show the P0031 or P0037 fault code. Your thoughts on the turbocharger are interesting too, I'll definitely keep an eye on that. I'm just dreading the cost a bit! I really appreciate your help, it definitely makes things easier. I'll let you know as soon as I have any news. See you then!

(Translated from German)

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