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Where are the oxygens censors located on a 1999 Acura CL 3.0, need to replace them

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The 3.0 is an ODB2 car so it has 2 o2 sensors. One before the CAT and one after the CAT. Check your headers for the primary heated o2 sensor location, and check on top of the cat for the secondary o2 sensor.

Posted on Sep 07, 2010

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