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Question:

1994 ford ranger O2 sensor wiring?

alright i have a 1994 ford ranger XLT, it has a 4cyl and is a stick shift. i need to know which wire goes where from my O2 sensor. i know there is a positive, negative, heater wire, and the wire that goes to the computer. if anyone could tell me what each wire is and what the color of each is?

Answer:

well the o2 itself is located on ur exhaust, usually just b4 the cat. just look at ur exhaust for the sensor sticking out and the wire will be coming out the back of it and u can trace it from there.
I know you're looking for very specific information, but I think you might be better off getting a service manual or at least a wiring diagram of the car. Some info is very VIN specific. This may not be, but it could be. Any answer you get could be unintentionally wrong, an cause you no end of headaches as you get mystery problems after you apply the wrong info. It happens.
The light blue and orange wire is 12V possitive with key in run. The orange wire is V-Ref (5 volts from the PCM) The gray and light blue wire is signal return to the PCM The black and white wire is ground

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