karate Posted February 24, 2009 Report Share Posted February 24, 2009 how do i install a 3 wire oxygen sensor?where do the wires go.i have an air fuel ratio gauge. Link to comment Share on other sites More sharing options...
19cturbo Posted February 24, 2009 Report Share Posted February 24, 2009 you should have two same color wires, and one odd color, the odd color runs to the ecu and to to your gauge, the two same color wires one is a 12v source and one is a ground, it doesnt matter which one goes to + or - Link to comment Share on other sites More sharing options...
karate Posted February 25, 2009 Author Report Share Posted February 25, 2009 thanx guy,thanx a lot Link to comment Share on other sites More sharing options...
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