Question about 2001 Cadillac DeVille

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How many front 02 sensors does a 2000 cad deville have?

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There will be two primary O2 sensors, one on each exhaust manifold (one for each bank of cylinders in the engine). There will also be one behind each catalytic converter (used for assessing how well the cat is functioning).

Posted on May 06, 2009

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I know it has one in each exhaust mainfold. I know it has a downstream one after the converter. But for some reason I think it also has one it the y-pipe before the converter.

Posted on May 06, 2009

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