shooter6 Posted February 25, 2011 Report Share Posted February 25, 2011 Hi guys i tried to search wiring for my o2 sensor for my te72 or 1980 toyota corolla 3tc engine. I need help where to plug my o2 sensor. Does any one know how to wire it up and where does it connect thanks Quote Link to comment Share on other sites More sharing options...
Hiro Protagonist Posted February 25, 2011 Report Share Posted February 25, 2011 Hi guys i tried to search wiring for my o2 sensor for my te72 or 1980 toyota corolla 3tc engine. I need help where to plug my o2 sensor. Does any one know how to wire it up and where does it connect thanks Being a carbied car, I would have thought that it wouldn't have had a factory O2 sensor (although I think some American spec carby cars do have them under the draconian Californian emissions spec). Are you looking at fitting an aftermarket O2 sensor for a AFR gauge? Quote Link to comment Share on other sites More sharing options...
shooter6 Posted February 26, 2011 Author Report Share Posted February 26, 2011 I'm in cali and i need to install the o2 sensor for smog i know its hooked to ecu but i can't find the ecu Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted February 26, 2011 Report Share Posted February 26, 2011 So, are you converting from the USA's carbs to Japanese fuel injection shooter? Did you get all the bits you needed? i can't find the ecu That's the bit that worries me! Quote Link to comment Share on other sites More sharing options...
shooter6 Posted February 26, 2011 Author Report Share Posted February 26, 2011 Its basicaly us but the old owner cut almost all the wiring Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted February 26, 2011 Report Share Posted February 26, 2011 So its still on carbs, not fuel injection? What did the O2 sensor do with carbs? I haven't come across an ECU with carbs but I suppose some of the realy tricky emission valves could be computer controlled. Have you tried these guys? http://www.3tcgarage.com/ Quote Link to comment Share on other sites More sharing options...
shooter6 Posted February 26, 2011 Author Report Share Posted February 26, 2011 I tried to register but never got my temp pass Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted February 26, 2011 Report Share Posted February 26, 2011 Well, it has an 'emissions ECU' that needs the O2 sensor. It is for various emissions controls on the engine, however it does not control the fueling of the engine, so it's not an EFI setup, and while it is an ECU, it is not an engine ECU, it's an emissions control ECU. http://www.toyotanation.com/forum/archive/index.php/t-327656.html here's a wiring diagram for it- http://home.insightbb.com/~jmengel4/wiring2.2.jpg That's from http://home.insightbb.com/~jmengel4/auto.html#enginespecs Quote Link to comment Share on other sites More sharing options...
shooter6 Posted February 27, 2011 Author Report Share Posted February 27, 2011 Tnx for all the help i found this http://home.insightbb.com/~jmengel4/wiring1.2.jpg but its a 2 connection my o2 sensor is only 1 wire also i found the emission box on the kick panel but need to wire up but the diagram i found its a 2 wire Quote Link to comment Share on other sites More sharing options...
shooter6 Posted February 27, 2011 Author Report Share Posted February 27, 2011 If any one has a picture of there o2 sensor on the car that is plug in maybe i can trace the old wire prob is there is no plug for my o2 I'm thinking old owner just yank the wire coz original plug was left on o2 sensor and have no idea what color the wire would be Quote Link to comment Share on other sites More sharing options...
shooter6 Posted March 2, 2011 Author Report Share Posted March 2, 2011 Guys i finishefd the wiring tnx now what i need is the vacum diagram Quote Link to comment Share on other sites More sharing options...
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