matteodark1
Seat Arosa Diesel O2 Sensor Issue
Summary of the thread
A 2001 Seat Arosa diesel is experiencing a check engine light and increased fuel consumption, with an error indicating an O2 sensor issue. The problem may stem from an aged oxygen sensor or a defective cable or plug connection. It is suggested to inspect the wiring and connections to the exhaust sensor, as loose or corroded connections can cause these symptoms. A workshop visit confirmed a defective plug connection, which was repaired.
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4 comment(s)
matteodark1 (community.author)
Thank you for your response. When you mention 'exhaust sensor wiring', could you be more specific? Are there particular points I should inspect?
hermannflamme4
Yes, the exhaust sensor wiring refers to the electrical connections leading to the O2 sensor. Focus on the plug that connects the sensor to the car's wiring harness. Corrosion or damage there is common. Given the symptoms and potential for misdiagnosis affecting the exhaust system, consider a workshop visit for proper diagnostics. An O2 sensor issue can impact car maintenance significantly.
matteodark1 (community.author)
Confirmed. The Seat workshop identified a defective plug connection on the exhaust sensor. Repair cost was 95€. Thank you for the insight.
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SEAT
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AROSA
hermannflamme4
I encountered a similar situation with my Arosa. The check engine light illuminated, and the error memory indicated an issue with the O2 sensor. It sounds like your exhaust system might be the culprit. Have you checked the wiring and connections to the exhaust sensor? Sometimes, a loose or corroded connection can trigger these symptoms. Think of it like a faulty wire in a lamp – it can prevent the light from working even if the bulb is fine.