charlesfeuer1

Argo O2 sensor issue

I've got a 2021 Fiat Argo with a gasoline engine and I'm running into some trouble. The check engine light keeps popping up, and the error memory is storing something related to the oxygen sensor. I've also noticed my fuel consumption has gone up. The car has 155953 km on it. Could a defective cable or plug connection cause the O2 sensor to fail?

A 2021 Fiat Argo owner experienced a check engine light and increased fuel consumption, with error codes indicating an oxygen sensor issue. Potential causes included a defective cable or plug connection. After consulting with others, it was suggested to check the wiring and sensor. Ultimately, the problem was resolved by replacing the faulty O2 sensor at a workshop.

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4 comment(s)

I had a similar issue with my Argo. Could be the O2 sensor itself, but check the wiring first. Is it throwing any specific codes?

I haven't checked the codes myself yet. Where exactly should I be looking for damaged wiring or loose connections?

Best bet is to take it to a workshop. They can properly diagnose the issue and check the sensor and wiring harness. I'd wager it's a faulty O2 sensor. Had the same symptoms. Good luck!

Thanks! Took it to the workshop, and it turned out to be the O2 sensor. New sensor and labor came to 95€ Appreciate the help!

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FIAT

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ARGO