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The fourth-generation Hyundai Elantra was released in 2006 for the 2007 model year. The Hyundai Elantra sold under the name Hyundai Avante in its South Korean home market.

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How do I replace a O2 sensor?

I have to replace the O2 sensor and don't know were is located on my car?

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Hi @maria74824

There are two O2 sensors in the engine. Which one do you want to replace?

Here's a video that shows how to replace the downstream O2 sensor and another video that shows how to replace the upstream O2 sensor.

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