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Old 07-11-2008, 01:22 PM   #1
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5-wire o2 sensor how to?

Can someone post a wiring diagram with the 5-wire o2 from a 92-93 vx. I need someone to explain a couple things to me. In the diagram I have it looks like there are seven wires coming off it. Another diargram at the end of the same factory service manual also has what looks like 7 wires. Can someone post how they wired the o2 sensor. You know, something like this wire to this pin and the like. The same with the egr if possible. Thanks guys.

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Old 07-12-2008, 10:28 AM   #2
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What are you doing with the O2 sensor? If you are trying to lean your fuel ratio there is an easier way.

Try using the atmospheric or barometric pressure sensor. It depends on the car manufacturer for its name. Your car should have one installed. The bonus on this sensor is your just telling the ECU your driving at a higher altitude. No warning lights or ECU errors to contend with.

What this sensor does is regulate fuel ratio for the altitude for which you are driving. Put a 25k potentiometer switch on it and adjust it so the idle begins to lower and that's it. Go too far and you burn valves and pistons because of higher cylinder temperatures.

Most have three wires. Ground, 12v and one somewhere around 3-5v. You want to tap into the lower voltage one.
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