olie05 Posted August 12, 2007 Share Posted August 12, 2007 I made the mistake of getting a 4 wire o2 sensor from a 92 or maybe 93 ford thunderbird at the JY. I'm pretty sure it was a v8 and I pulled the passengers side pre-cat one. I am confused as to which wires are the heater wires and which wires are the signal wires. The colors I have on the hanress are: gray with yellow stripe gray with red stripe Black with green stripe tan with orange stripe can someone please tell me what these do? Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 13, 2007 Share Posted August 13, 2007 Maybe the thunderbird manual is available online to check the schematics. Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 13, 2007 Share Posted August 13, 2007 Just from a general wiring point of view, I would surmise that your two grays are the heater, the black is ground the and tan is the sensor. You could always use a multimeter and ohm out the wires to see which ones are the heater. They will more than likely read little to no resistance as it's a heating coil. Usually those coils will increase resistance as it heats. Quote Link to comment Share on other sites More sharing options...
olie05 Posted August 14, 2007 Author Share Posted August 14, 2007 ha. I found a very good source that lists the wiring for any o2 sensor connector... thankyou NGK: click here for pdf Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 14, 2007 Share Posted August 14, 2007 cool, good work Quote Link to comment Share on other sites More sharing options...
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