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Discussion Starter · #1 ·
got a code of 16518...o2s b1 s1, in my girls 97 2.0..is that the pre cat or afyter cat o2 sensor?...thanks
 

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Re: O2 code reading? (RJB121)

That should be the first sensor on the down pipe; so before the catalytic convertor.
- Erik
 
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