pshepard327ci Posted May 13, 2004 Share Posted May 13, 2004 hey, ive been reading everywhere and have looked at all the wiring schematics and then i go and look at my harness laid out in the garage, and i get confused. I took a couple pictures of the harness and im just wondering if someone could maybe point me in direction of which plugs are 1,2,3 as listed in sticky post about swap, and maybe help me out about what all i need off the harness. are these the plugs i need only a couple wires off of? http://f2.pg.photos.yahoo.com/ph/petershepardtx/detail?.dir=/b397&.dnm=881c.jpg this is the harness those plugs are a part of. http://f2.pg.photos.yahoo.com/ph/petershepardtx/detail?.dir=/b397&.dnm=7aeb.jpg&.src=ph any help would be great, im hoping to have most of the wireing done by tonight, maybe even a well deserved test drive. thanks Quote Link to comment Share on other sites More sharing options...
datsunan Posted May 13, 2004 Share Posted May 13, 2004 What you need off the harness all depends on how stock your keeping the engine smog ect. I have done this swap and if your confused now just wait till you go to put it in and hook it up. You had better be good at troubleshooting and using a meter. Get as many wiring diagrams as you can and become familar with both the 240 and 280 harnesses because you still need both. I will try to post an 83 factory diagram that was most helpfull to me. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted May 13, 2004 Share Posted May 13, 2004 Copied and edited from the sticky that you refer to: You really only need to hook up these wires Plug 1= BR 12v power source. Positive G 12v power source. Positive Plug 2= Y start signal (+) (connect to solenoid wire so only on during cranking) GL ground for inhibitor switch YW coil (-) (must use ignitor) This output from ECU fires ignitor which fires the coil Plug 3= LR fuel pump relay control(add your own relay for fuel pump) G ignition signal (+) for air regulator BW ignition signal (+) From the haynes manual schematic you can track down the appropriate connectors. Do this by looking at the schematic and seeing what color wires go to the plug and how many wires(refer back to full wiring post in sticky). Then isolate the correct plugs, PLUG 2 has two yellow wires. You will have to verify which yellow wire to use for the start signal. The other yellow wire is for A/C and is not used. This start signal is important because it adds more fuel during cranking only to startup. Make sure it is connected to the solenoid signal so it is only on during cranking. Notice that PLUG 2 also has two yellow/white wires, of which only one is used and connected to negative coil. Ground GL wire on PLUG 2 so ihibit is turned off. On PLUG 3 use the LR wire to turn on/off fuel pump realy. You will have to install your own relay unless you try to use the fuel pump modulator thingy. I just installed my own relay, easier to mess with. On PLUG 3 I think I connected G and BW together becasue one is ingnition output signal and the other is ignition input signal. It has been a year already since I did this and I can't really remember, but maybe that will help. Quote Link to comment Share on other sites More sharing options...
pshepard327ci Posted May 14, 2004 Author Share Posted May 14, 2004 well, i just got it all bolted in and everything, the biggest problem with all that is the turbo i picked up, just a lot of tinkering rotating etc.. to get everything good, it is going to be a pain plumbing the turbo output but im sure i can get some crazy 90deg bends at home depot. gonna hook up the harness tomorow morning, hopefully with most hooked up i can figure rest out. thanks again for the help Quote Link to comment Share on other sites More sharing options...
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