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I have an air fuel guage from auto meter and I was wondering what wire to connect it to on which o2 sensor. I'm having a difficult time. If anyone has any info lemme know thanks.
 

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Here are the ways I would know:

there are 3 o2 sensors instead of one.

there is extra plumbing going into the exhaust manifold (that being the air pump stuff)



other than that I do not know. I'm sure there are other ways too.
 

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I would hook it up to the one that is pre cat.
 
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