q-tip Posted April 25, 2016 Report Share Posted April 25, 2016 Are you trying these things one at a time or just changing a bunch of shit at once at then it still doesn't work? If what you're saying g is correct it sounds like that module is bad. Is there any way to test if there is anything coming from it? Quote Link to comment
HRH Posted April 25, 2016 Author Report Share Posted April 25, 2016 No, I've been testing different things methodically. So far the last remaining thing is that igniter, which being it's a CAS instead of the regular dizzy, that igniter is an ignition amplifier according to the '81 turbo manual ('83 system is different but same type of amplifier.) No test option in the '81 manual that I can see. I'd like to find an '83 turbo fsm so I could confirm certain things. Skib got me a diagram which has a lot of it, but near as I can tell, I finally have things hooked up correctly. Thinking I'll probably be dropping some cash on that ignition amplifier, reluctantly. Pisses me off I can't test it. I would put up some pictures, but I'm kinda tired from the day. Just done lots of staring at wiring diagrams and double checking stuff, as well as trying a few ideas that didn't pan out. The system seems to work just fine, just no spark. Last piece of the system (which was wired backwards initially) is that igniter. I sure as shit hope I fried it, otherwise this is going to be an expensive lesson. And if it still doesn't work, I'm abandoning the factory wiring and ecu and going custom. Or strapping an SU carb on it. Quote Link to comment
HRH Posted April 25, 2016 Author Report Share Posted April 25, 2016 But in case you think I'm giving up....... Quote Link to comment
HRH Posted April 25, 2016 Author Report Share Posted April 25, 2016 Ok, well rockauto had it, but then they cancelled saying they didn't have it. Sonofabitch. Nissan doesn't have it. Motion doesn't have it. Autozone doesn't have it. We don't have it. The only person remaining is fucking O'Reillys and I really really don't want to order it from them! Fuck!! :angry: Anyone have a spare one of those they would sell me? Quote Link to comment
q-tip Posted April 26, 2016 Report Share Posted April 26, 2016 Time to search the junk yards 1 Quote Link to comment
KoHeartsGPA Posted April 26, 2016 Report Share Posted April 26, 2016 Or might just be a very evil gremlin... Quote Link to comment
HRH Posted April 26, 2016 Author Report Share Posted April 26, 2016 Could be that too. Investigating another option at the moment. Two options actually. 1 Quote Link to comment
HRH Posted April 26, 2016 Author Report Share Posted April 26, 2016 Well I feel like a traitor. I supported the evil green assholes. Unfortunately, the only other option after Rockauto cancelled my part due to no availability was one on Amazon that shipped in 1-3 months. Helpful, right? And the other was a used module from a wrecking yard, which, while may have worked just fine, was only 30 bucks less and is still 30+ years old. So I opted for the online option from the only remaining vendor, which was...yeah... For those of you who give a shit about your work, you know how hard it is to support the enemy. And they are just that, unless you like monkeys pushing buttons at your local parts store. Don't get me started on my soapbox. Anyway, the other options are the Z31 ECU and harness upgrade. I have some options here, but that requires re-wiring everything and while not super hard, I'd rather just make what I have work and maybe I'll be able to get the car ready for autocross. We shall see, module should be here Thursday/Friday, in time for the weekend. Sure as shit hope it works. Otherwise I'll be a very sad panda. Quote Link to comment
HRH Posted April 27, 2016 Author Report Share Posted April 27, 2016 Found the problem: 3 Quote Link to comment
Jester Posted April 27, 2016 Report Share Posted April 27, 2016 :rofl: :rofl: :rofl: Quote Link to comment
HRH Posted April 27, 2016 Author Report Share Posted April 27, 2016 I get the part in on Thursday or Friday. After killing the evil Prius, that should provide vroom to Betty White. We shall see. 1 Quote Link to comment
hobospyder Posted April 27, 2016 Report Share Posted April 27, 2016 Omg I'm dieing. Hopefully that works Quote Link to comment
moath Posted April 27, 2016 Report Share Posted April 27, 2016 I'm definitely keeping this sacrificial troubleshooting trick in my back pocket! 1 Quote Link to comment
Skib Posted April 28, 2016 Report Share Posted April 28, 2016 Why didnt you tell me you had a prius around the house from the start?! clearly the issue. 3 Quote Link to comment
KoHeartsGPA Posted April 28, 2016 Report Share Posted April 28, 2016 WTG Matt!!!! DAI PRIUS DAI :thumbup: :rofl: Quote Link to comment
HRH Posted April 28, 2016 Author Report Share Posted April 28, 2016 Hey Skib, I think we already covered this, but are you SURE the tach wire doesn't need to be hooked up for the ECU to run? Quote Link to comment
HRH Posted April 28, 2016 Author Report Share Posted April 28, 2016 I don't see it going into the main harness, just comes out of the other one along the fender. If it goes to the tach, it ends there so the tach can function. But this thread makes me wonder with the MSD stuff: http://www.zdriver.com/forums/280zx-performance-technical-79/msd-ignition-13365/ Here's another one. It does mention specifically the MSD though. But I wonder if I do need to hook up that 2.2kohm resistor to the tach. http://www.zcar.com/forum/10-70-83-tech-discussion-forum/54828-msd-my-78-won-t-start.html Quote Link to comment
q-tip Posted April 28, 2016 Report Share Posted April 28, 2016 Hook it up and find out, it not going to hurt anything. Quote Link to comment
HRH Posted April 28, 2016 Author Report Share Posted April 28, 2016 Skib just confirmed with his turbo car. Starts fine without tach connected. Just kills tach. Quote Link to comment
q-tip Posted April 28, 2016 Report Share Posted April 28, 2016 Donit anyway, what do you have to lose, maybe it's not the tach wire after all? Quote Link to comment
HRH Posted April 29, 2016 Author Report Share Posted April 29, 2016 No, I know exactly where it goes, it's the tach wire. The tach I have doesn't need the 2.2 kohm resistor. Module came today, as soon as I'm off I'll race home and install. 1 Quote Link to comment
HRH Posted April 29, 2016 Author Report Share Posted April 29, 2016 SHE RUNS!!!!! :D Have I mentioned I'm so completely happy right now?! I would do a video, however, upon running for a bit, it was noticed that the heater core they had mounted in the passenger seat has likely been frozen and broken because it pisses water like a big dog. And there seems to be a fuel leak from one of the fuel lines. I'm thinking it may be the one I unioned together. So, I may yank out and fix that entire section this weekend. I may just run a new line. We shall see. Either way, I don't care. I diagnosed it correctly, which renews my faith in my diagnostic skills, and she fired right up upon installation of the new module! And next time I'll know not to screw up the wires and blow that shit out! 7 Quote Link to comment
KoHeartsGPA Posted April 29, 2016 Report Share Posted April 29, 2016 :thumbup: :) Quote Link to comment
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