Skoda Citigo Oxygen Sensor Issue

My 2018 Skoda Citigo with a gasoline engine is giving me headaches. The check engine light came on, and I have an error stored in the error memory, something about the oxygen sensor heater failure. I also noticed that my fuel consumption is higher than usual. The car has 125553 km on the clock. I checked the cable and plug connection, and it looks ok, but I'm no expert. Could it be just a faulty sensor? Any ideas?

4 comment(s)

Sounds like a faulty sensor. I had a similar issue with my Citigo. The check engine light was on, and the car was drinking fuel. Have you tried any sensor testing? Could be the air-fuel ratio is off.

Sensor testing? How did you do that? And which sensor was faulty for you? Was it also the oxygen sensor? I'm not really sure about the air-fuel ratio, but I read something about it online. Any further details would be appreciated.

Yes, it was the oxygen sensor for me too. I didn't do the sensor testing myself; I took it to a workshop. They told me the sensor was bad and that it probably damaged because a car component was defective. If the cable looks ok, I would just go to a workshop and have them check it out. They can measure the sensor values and tell you for sure.

Thanks a lot for sharing your experience. I took it to the local garage, and you were right, it was the oxygen sensor. They checked the wiring as well. Total cost was 95€ including the sensor. Now the check engine light is off, and hopefully, the fuel consumption will go back to normal.

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