Nv_s30 Posted May 14, 2011 Share Posted May 14, 2011 Well I just finished wiring the engine wiring harness but what I am stuck with is how to eliminate the tranny harness. Like if I do eliminate it will the car not start due to the clutch neutral safety switch not being hooked up? How do I hook up the alternator? That's mainly my main concerns. If anybody could help or even txt me I'll appreciate it. 775-671-0212 Quote Link to comment Share on other sites More sharing options...
TheMission Posted May 14, 2011 Share Posted May 14, 2011 Here's a good link for the alternator wiring - http://datsun1200.com/modules/newbb/viewtopic.php?post_id=61774 The only things I wired on my trans are the reverse light switch and the speed sensor and I start up just fine. Quote Link to comment Share on other sites More sharing options...
Nv_s30 Posted May 14, 2011 Author Share Posted May 14, 2011 How did you wire your reverse? Quote Link to comment Share on other sites More sharing options...
Nv_s30 Posted May 14, 2011 Author Share Posted May 14, 2011 How did you wire your reverse? Quote Link to comment Share on other sites More sharing options...
mr jdm Posted July 28, 2011 Share Posted July 28, 2011 I dont have the manual open right now If you want to wire up the reverse lights, most likely ground runs through the reverse light sensor, ground in, then ground out goes to the groundon the reverse lights. Then you have to just have to run power to the reverse lights, they will light up when you complete the circuit. I'm slightly confused how you could wire up the engine harness but have a problem with the reverse lights? Since I do not have the manual open, either power or ground runs through the reverse sensor. its more than likely ground. Quote Link to comment Share on other sites More sharing options...
joa_taste Posted October 21, 2011 Share Posted October 21, 2011 I dont have the manual open right now If you want to wire up the reverse lights, most likely ground runs through the reverse light sensor, ground in, then ground out goes to the groundon the reverse lights. Then you have to just have to run power to the reverse lights, they will light up when you complete the circuit. I'm slightly confused how you could wire up the engine harness but have a problem with the reverse lights? Since I do not have the manual open, either power or ground runs through the reverse sensor. its more than likely ground. did you end using a fuse block for this? would you say this diagram is pretty acurate? http://www.ozdat.com/forum/download/file.php?id=189&sid=22fce1607291660f3ca28745ae1e4a77 thank you Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 24, 2011 Share Posted October 24, 2011 I dont understand why there is a wire from your starter to alternator There is no relay from your switch to ECU And of all that, your wiring diagram is so general that it wouldn't help you at all if somebody said "yea thats accurate" Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 24, 2011 Share Posted October 24, 2011 And why is the only wire going to the engine a ground? Your going to have a difficult time Quote Link to comment Share on other sites More sharing options...
joa_taste Posted October 24, 2011 Share Posted October 24, 2011 It's a diagram I had found from another thread on a different site. I was just wondering if that was accurate because I was going to wire it directly like shown in the diagram. I don't really understand it but i was wondering if i used a fuse block could i just wire everything (alternator, starter, ignition switch, ecu, etc etc.) into the block and plug it directly to the battery? Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 24, 2011 Share Posted October 24, 2011 (edited) what I was trying to say is even if that was 100% accurate, it doesn't help you. You need to know specific wire colors or pins. Send me your sr20 harness, for 250 shipped I will make it so you have to wire up about 3-4 wires. I will add relays and fuses No, you cant just plug everything onto your battery, your really going to have to start reading and studying, or pay somebody to do your wiring, you sound extremely clueless. Certain wires can not be always hot Your starter for example, has to be on a momentary switch The alternator needs a switched 12 volt or the regulator will always be on Edited October 24, 2011 by mr jdm Quote Link to comment Share on other sites More sharing options...
joa_taste Posted October 24, 2011 Share Posted October 24, 2011 I've bought the wiring harness from wiring specialist. And found out it didn't come with a transmission harness. I don't know if you remember but we had this convo before, because if I would had bought my motor with a harness I'd just gone ahead and sent you my harness. The only thing i don't want to do is go out and buy a transmission harness for the z if i don't need it Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 25, 2011 Share Posted October 25, 2011 (edited) I those guys are good guys, but myself I have never seen their product. I would imagine it comes with a 4 fuse block and 3 relays, one for fuel, ignition, and ecu. And it should come with wires labeled, there would only be about 2-4 wires to wire up with a harness from them. Also, not saying you dont, but if you did have their harness, it wouldnt even make sense to post up that diagram, seeing as there harness would be complete and have instructions. Lastly, you do NOT need the trans harness. If you want a working speedometer, you will need to buy an electric speedometer and wire it up directly to the sensor in your trans. If you want your reverse lights to work, its like I told you before, the reverse light sensor on the trans closes/opens the ground path on the light circuit. I am seriously debating making a post a how to wire up an sr20 in any chassis thread Edited October 25, 2011 by mr jdm Quote Link to comment Share on other sites More sharing options...
joa_taste Posted October 25, 2011 Share Posted October 25, 2011 I those guys are good guys, but myself I have never seen their product. I would imagine it comes with a 4 fuse block and 3 relays, one for fuel, ignition, and ecu. And it should come with wires labeled, there would only be about 2-4 wires to wire up with a harness from them. Also, not saying you dont, but if you did have their harness, it wouldnt even make sense to post up that diagram, seeing as there harness would be complete and have instructions. Lastly, you do NOT need the trans harness. If you want a working speedometer, you will need to buy an electric speedometer and wire it up directly to the sensor in your trans. If you want your reverse lights to work, its like I told you before, the reverse light sensor on the trans closes/opens the ground path on the light circuit. I am seriously debating making a post a how to wire up an sr20 in any chassis thread I just bought the harness last week, monday, yury said it takes about two to three weeks since they make them upon order.. So I havent gotten the harness in my possesion yet. With this build I try and figure things out before hand so when I do have it, im not breaking things or going circles. The harness isnt a complete harness either, it doesnt come with a trans harness because when I had asked if it came with, he said it was another 90 dollars. Sorry bro but ill admitt wiring isnt my strong point, and I know it. Hence the reason I bought a harness from wiring specialties. So I dont have to worry about it. I know it comes with a few wires that are gonna need to be wired up by me, and I know he will have everything labeled. I even asked if he could put in directions because of my illeterate wiring skills. Im not buying a new speedomet right now because I figured I dont need it right now. Other than the exhaust manifold, and turbo back the car is going to be all stock. And as budget friendly as I can make it. It would be awesome if you could make a build thread of the transmission harness. I think I speak for many when I say it would be highly appreciated Thanks Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 26, 2011 Share Posted October 26, 2011 Your harness from them will be simple, the only wires to wire up on it should be switched 12 volt, constant 12 volt, and a ground., maybe a fuel pump 12 volt suppply too. Quote Link to comment Share on other sites More sharing options...
mr jdm Posted October 27, 2011 Share Posted October 27, 2011 It would be awesome if you could make a build thread of the transmission harness. Thanks Ive answered that for you multiple times, if you dont understand this then goodluck. Your reverse lights have 2 wires, one for power one for ground. GROUND ONE, on the other one, run it to the any of the 2 wires on the reverse light switch, then the other wire on the reversel ight switch goes to a switched 12 volt Your speedo wires like this 2 wires on the speedmeter, ground one of them, the other one runs to the input of your speedometer. The other possible sensor to wire up is the neutral sensor, I didnt care about it. That is your trans harness.... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.