wernerwinkler1

Lexus LS Oxygen Sensor Error

Hi, I have a 2004 Lexus LS with a gasoline engine. The check engine light came on, and the error memory says something about the oxygen sensor. I've also noticed higher fuel consumption lately. Could a defective cable or plug connection be the culprit?

A 2004 Lexus LS owner reported a check engine light and increased fuel consumption, with an error indicating an oxygen sensor issue. The problem could stem from a defective cable or plug connection. It was suggested to have the vehicle checked at a workshop to diagnose the sensor and wiring properly, as similar issues have been resolved through professional inspection and repair.

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4 comment(s)

Hey, I had a similar issue with my LS. Check engine light, O2 sensor error... Sounds familiar. Have you looked at the exhaust sensor? In my case, it was that the air-fuel ratio was off. What mileage are you at?

Thanks for the quick response! I'm at around 51519 km. Is the exhaust sensor the same as the oxygen sensor, or are they different? Did you replace it yourself, or did you have a mechanic do it?

Yeah, exhaust sensor and oxygen sensor are often used interchangeably, so we're talking about the same part. Given the symptoms and potential connection issue you mentioned, it might be more than just the sensor itself. I'd suggest getting it checked at a workshop. In the end my repair cost was around 95€. They can properly diagnose the wiring and everything else.

Thanks a lot for the advice! I'll take it to a workshop and have them check the sensor and wiring. Seems like the best approach. I appreciate your help!

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LEXUS

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