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ida_weiss54

Twingo oxygen sensor heater failure

Twingo 2008 diesel, getting oxygen sensor heater failure, check engine light, and increased fuel consumption at 112981 km. Diagnostics suggest cable or plug issue. Anyone seen this?

Summary of the thread

A 2008 Twingo diesel is experiencing an oxygen sensor heater failure, leading to a check engine light and increased fuel consumption at 112,981 km. Diagnostics suggest the issue may be related to a cable or plug problem. A similar case with an Opel Astra involved attempts to clean contacts and check wires, but ultimately required professional testing and repair. The recommended solution is to seek professional diagnosis and repair to resolve the issue efficiently.

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4 comment(s)

adrianscholz97

Oh man, sounds familiar! I had almost the EXACT same thing happen with my old Opel Astra. Check engine light, gas mileage tanking... turned out to be some stupid sensor. I was pulling my hair out trying to figure it out. Was it throwing any specific codes?

ida_weiss54 (community.author)

Yes, the diagnostic tool indicated a fault related to the oxygen sensor heater circuit. Could you elaborate on which sensor failed in your Opel Astra, and what troubleshooting steps you undertook before resolving the issue?

adrianscholz97

Okay, so it was the O2 sensor, same as you. Honestly, I messed around with trying to clean the contacts, checking the wires... total waste of time. Should have just taken it to a shop sooner. I was convinced I could fix it myself, but in the end, it needed proper testing. Save yourself the headache and find a good technician. That's my advice.

ida_weiss54 (community.author)

I appreciate your insights. I will proceed with a professional diagnosis and repair. The estimated cost is approximately 95€ Thank you for your assistance.

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RENAULT

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TWINGO