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o2 senesors have to be on exaust manifold so where ,thats the only place it can positively check co2/feul emissions On the back side of the engine (between the engine and the firewall) there is a cover with 3 bolts in it. Remove the 3 bolts and the cover and you will find the exhaust manifold with the O2 sensor. You will need a 7/8" wrench to remove it and install a new one.

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โˆ™ 2005-08-15 22:52:35
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Q: Where is the manifold O2 sensor on a 1996 Grand Am 2.4SE?
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