elisakrueger54
Oxygen Sensor Issue Lexus SC
Summary of the thread
A 2000 Lexus SC is experiencing issues with the check engine light on and increased fuel consumption, with a scan indicating an oxygen sensor error. The problem may be due to a defective cable or plug connection. It is suggested to have the vehicle checked at a workshop, as similar cases have involved replacing both the oxygen sensor and the cable to resolve the issue. After following this advice, the car runs smoothly again.
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4 comment(s)
elisakrueger54 (community.author)
The error code doesn't specify a particular sensor, just a general air-fuel ratio imbalance. Is that what you experienced? Did you try cleaning the sensor first, or did you just replace it?
joachim_taylor10
Yeah, that's pretty much what I saw too - a vague air-fuel ratio thing. I didn't bother cleaning it; those sensors are like old lightbulbs, sometimes they just burn out. I'd suggest getting it checked at a workshop. In my case it was also a defective cable, so they had to replace both.
elisakrueger54 (community.author)
Thanks for the advice! I took it to a trusted workshop, and as you suspected, the O2 sensor was indeed faulty, and so was the cable. After replacing both, the car runs smoothly again. The total repair cost was 95€.
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LEXUS
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SC
joachim_taylor10
Sounds familiar! I had a similar experience with my SC. The O2 sensor went haywire, and my fuel economy took a nosedive. It's like trying to run a marathon with a pebble in your shoe – annoying and inefficient. Was the error code pointing to a specific sensor?