Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Signal wire from O2 sensor??

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07-25-2011, 07:01 PM

clean850R

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Signal wire from O2 sensor??

So trying to hook up an air/fuel ratio gauge and cannot figure out which wire off of the O2 sensor is the signal to PCM? I know 2 are for the sensor heater but which one is the signal feed to ECU? I thought the green one?? Any help would be great!

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02, 850, airfuel, gauge, hook, o2, oxygen, ratio, sensor, signal, volvo, wire, wires

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