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Most O2 sensors are in the Exhaust pipe running from the back of the manifold. It is silver with a single black wire running to it. It threads into the exhaust pipe like a spark plug and can usually be accessed from under the hood. Happy Wrenching.

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โˆ™ 2006-05-22 14:39:55
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Q: Where is the oxygen sensor on a 1989 Pontiac Grand Am?
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