emmawinkler3
Skoda Fabia Oxygen Sensor Error
Summary of the thread
A 2007 Skoda Fabia with a diesel engine is experiencing an oxygen sensor error, leading to a check engine light and increased fuel consumption. The issue is suspected to be caused by a defective cable or plug connection to the oxygen sensor. It is suggested to check the wiring and plug connection, as a corroded or loose connection can lead to such errors. The problem was resolved by fixing a faulty connection on the oxygen sensor heater element at a workshop.
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4 comment(s)
emmawinkler3 (community.author)
Thanks for the tip! I'm not super familiar with car components. Where exactly is the oxygen sensor located, and is it something I can easily check myself without special tools?
barbarablaze22
Yes, a defective connection is a common cause. The heater element needs a good connection to function. If you're not comfortable doing electrical diagnostics, I'd suggest taking it to a workshop. They can properly test the sensor and wiring harness.
emmawinkler3 (community.author)
Took the Fabia to the shop. It was a faulty connection on the oxygen sensor heater element, as suspected. 95€ later and the malfunction indicator is off. Thanks for the help!
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SKODA
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FABIA
barbarablaze22
That sounds like a classic oxygen sensor heater failure. I had a similar issue on my old BMW. The DME was throwing codes related to the air-fuel ratio being off. Have you checked the wiring and the plug connection to the oxygen sensor itself? A corroded or loose connection can cause this.