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linaflame5

Ecosport Oxygen Sensor Heater Failure

My 2022 Ford Ecosport with a gasoline engine is showing a check engine light at 59123 km. Error memory indicates an oxygen sensor heater failure, with the malfunction indicator lit and higher fuel consumption. I suspect a defective cable or plug connection. Has anyone experienced this?

Summary of the thread

A 2022 Ford Ecosport is experiencing a check engine light due to an oxygen sensor heater failure, leading to increased fuel consumption. The suspected cause is a defective cable or plug connection. After investigation, the issue was identified as a corroded connector, which was cleaned and replaced, resolving the problem.

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4 comment(s)

HornAxel

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?

linaflame5 (community.author)

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?

HornAxel

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.

linaflame5 (community.author)

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!

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FORD

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ECOSPORT