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Discussion Starter · #1 ·
im still trying to hook up this air fuel gague but it has three wire of it i have to tap the o2 sensor in the front left of the exhust of a june 1999 cougar some body help the sensor has a soild purple wire and there other wires so i think i have to tap in to each one except the soild purple help please
 

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I think I'm correct in this....the purple one goes to the O2 sensor, and the red and black (which should be the other two) go to power and ground.
 
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