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One is on the downpipe (right below the exhaust manifold) and the other is right after the Catalytic Converter, and they are expensive

The o2 sensors are really not that expensive. The one that is located by the header is only $20.00 at either advance auto, or napa. The other one by the catalytic converter is only $60 to $70. If you think that is expensive then your not looking in the right stores. That is cheap compared to other parts that is normally replaced after so long.

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โˆ™ 2010-04-13 14:42:02
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Q: How would you locate the two O2 sensors on a 1999 Chevrolet Cavalier Z24?
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