Ecosport Oxygen Sensor Heater Failure

I had a similar problem with my Ecosport. The check engine light was on, and the fuel consumption was terrible. Was the error code specifically pointing to a particular oxygen sensor, like upstream or downstream?

The error doesn't specify which sensor, just that it's related to the heater element circuit. Did yours also point to the heater circuit?

Yes, mine was the heater circuit too. After checking the wiring, I couldn't find anything obvious. In the end, I took it to a workshop. It was a faulty sensor. I'd recommend you do the same.

Thanks for the advice. Turns out it was a corroded connector, exactly as suspected. Cleaned it up and replaced the plug. Repair cost was 95€. Appreciate the input!