V90 oxygen sensor heater fault

I had something similar happen with my V90. Not fun. Higher fuel consumption definitely sucks. Is it just throwing the one code or are there others? Could be a faulty sensor, which messes with the air-fuel ratio. That can cause all sorts of problems with vehicle emissions. What kind of mileage are you at?

Just the one code related to the O2 sensor heater. I'm at 134250 km. Was your issue also the heater element, or the actual sensor? And how did you figure it out?

Honestly, I didn't figure it out myself. Took it to a workshop. They said it was the heater element in the O2 sensor. It's all tied into the car's computer, so I wasn't messing with that. Might be worth getting it checked out before you start replacing parts. Cost me around 95€ to fix.

Thanks. I was hoping to avoid the workshop, but you're probably right. I'll get it checked out. Turns out the connection was indeed faulty. A quick fix, and I'm back on the road! Cheers!