mm88swrt Posted November 27, 2012 Share Posted November 27, 2012 so i've searched my socks off, and can't find anything on hooking up an a/f gauge on an ea82t with a single wire O2 sensor. i do know that the readings will not be super accurate but it will give me a refference to go off of untill i get all the fuel mods done. right now it is hooked up to the 45pin i believe off the ecu. this is the wire my book was telling me is the O2 wire. i also check it to make sure it was the wire i wanted. but i do not get any reading out of it. would it work to get wide band and hook it up and somehow use my single wire from the body harnes to hook up to it? if i could just get it to work with my single wire for now that would be fine with me. Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted November 27, 2012 Share Posted November 27, 2012 Hm, your gauge, does it have two wires for input? If so I think you would need to connect one of the input wires to ground and the other to that single wire output from the oxygen sensor. Not sure how well it will work with a non-heated o2 sensor. Even if it does if that is a narrow band sensor I don't think those give a very useful output for a/f gauges. Quote Link to comment Share on other sites More sharing options...
mm88swrt Posted November 28, 2012 Author Share Posted November 28, 2012 It only has one wire for the input signal. Quote Link to comment Share on other sites More sharing options...
zdriver123 Posted November 28, 2012 Share Posted November 28, 2012 Your A/F readings will not be accurate without a Wideband O2 Sensor your meter will always bounce around like a metronome. If it was me I'd wait and install a dedicated Wideband and weld a bung into the downpipe just aft of the stock sensor and use both O2's. Quote Link to comment Share on other sites More sharing options...
mm88swrt Posted November 28, 2012 Author Share Posted November 28, 2012 That was another option I was thinking, just running two 02 sensors. But my question would be is how to just hook the wideband up. Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted November 28, 2012 Share Posted November 28, 2012 Hm well what make/model gauge do you have? I'm guessing the instructions will probably show how to do it. Some sensors I think have two wire output, so as to not use the noisy case ground to reference the o2 sensor output. Quote Link to comment Share on other sites More sharing options...
mm88swrt Posted November 28, 2012 Author Share Posted November 28, 2012 (edited) 216BFWAAFSM - Amber/White 52mm A/F Ratio Gauge - stepper motor . it's a prosport (older) premium series gauge. 5 wire set up. ground, acc, acc on, headlight switch and then on wire for the O2 signal. would this gauge work with a wideband O2? i've got no problem just installing another O2 if it's not a pain in the A$$. Edited November 28, 2012 by mm88swrt Quote Link to comment Share on other sites More sharing options...
zdriver123 Posted November 28, 2012 Share Posted November 28, 2012 http://prosportgauges.com/instructions.aspx Not sure which is yours but here's the archive of gauage wiring diagrams Quote Link to comment Share on other sites More sharing options...
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