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Slowly but Surely
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1,438 Posts
Discussion Starter #1
Yea, I was wondering on the Oxygen sensor, which color wire is the signal wire because im hookin up my boost & a/f ratio guages.

Thanks
 

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Just say no to Supras
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2,292 Posts
Its the blue wire, the two black wires are the heater wires. Just a tip though, it is easier to tap into the Ox wire at the diagnosis block.
 
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