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On the 98 Mazda 626 there are two oxygen sensors, one is located at the front bottom of engine on the drivers side. If I remember correctly it requires a 23mm wrench to remove. The other sensor is located under the bottom on the exhaust pipe just behind the cat. converter. I hope this will lead you in the right direction and good luck.

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โˆ™ 2006-07-27 21:32:33
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Q: Where are the oxygen sensors located in a 1998 Mazda 626 LX?
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