Thread: Ever so close
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Old 09-03-2018, 11:39 AM   #4
particlewave
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Join Date: Mar 2012
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Garage
There are 2 sets on 97-99 cars for a total of 4 O2 sensors; the 2 pre-cat O2 sensors which are used for fuel ratio and 2 post O2 sensors which monitor catalytic converter health.

Last edited by particlewave; 09-03-2018 at 02:02 PM.
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