zilvia_gt Posted December 24, 2008 Share Posted December 24, 2008 Just got my motor set today and the relays by the ecu are missing. There's two blue plugs (with no relays). Where can I find replacement relays for them? **This image was borrowed from Chris Rummel's wiring guide from the f.a.q section** Quote Link to comment Share on other sites More sharing options...
Careless Posted December 25, 2008 Share Posted December 25, 2008 I'm not sure, but I read somewhere that all blue nissan relays are the same internally, as they are "generic nissan"... I read that in the Z31 fuel pump mod document that I have some where. But, you'll have to wait till I'm at my own house to run a part number for you (and I don't even have the internet there!) Quote Link to comment Share on other sites More sharing options...
synthtk Posted December 29, 2008 Share Posted December 29, 2008 I am using standard 30amp (i think) automotive relays..... car runs fine and you can get them anywhere for a few bucks. Quote Link to comment Share on other sites More sharing options...
zilvia_gt Posted December 29, 2008 Author Share Posted December 29, 2008 Sweeet...Thanks for the info. I imagine they're a lot cheaper than the Nissan originals too. I am using standard 30amp (i think) automotive relays..... car runs fine and you can get them anywhere for a few bucks. Quote Link to comment Share on other sites More sharing options...
Canadianz Posted January 4, 2009 Share Posted January 4, 2009 Radio Shack has them sometimes super cheap on sale, just make sure you get the right size for the application. They fit right up or at least the ones we used on our build do. Good luck ! Quote Link to comment Share on other sites More sharing options...
rayaapp2 Posted January 6, 2009 Share Posted January 6, 2009 They are generic and Nissan colored coded their relays for us as well. There are 2 style connectors though you have to watch out for. You will have the most luck pulling the exact relay from an Infiniti Q45 as they had a ton of them on board, but just about any newer Nissans will have them from the 1990's to Current. They used these style relays in places that were unsecured. So like under the dash vs being in the fuse block. So these type are usually connected to a little metal bracket that hangs them to a mounting surface. Best place to find them is near the ECU behind the kick panels just hanging out. You will find that 99% of the time the relays are in very good shape even if the car is completely trashed. The relays were rated for much more than Nissan ever used them for in most applications. Look for the ones that have a opaque connector rather than the completely blue one. Those are the ones you need. Generic Bosch style ones work just fine to, but its more cutting and soldering that you already have to do in this swap. Quote Link to comment Share on other sites More sharing options...
Careless Posted January 7, 2009 Share Posted January 7, 2009 A friend of mine tipped me off the other week while RacinJitter was in town, but I forgot to make mention of it. Generic blue Nissan relays are the same as the Green ones, circuit wise, but are good for upto 30 amps, whereas greens are 20amps. before 95 or 96, Nissan had a different manufacturer for their relays, so the ones prior to that year will not plug into the newer socket style, and vise versa. He makes harnesses for S13/RB swaps and such, so he's seen it all! Quote Link to comment Share on other sites More sharing options...
synthtk Posted January 12, 2009 Share Posted January 12, 2009 I must have lucked out on my harness then... I just plugged the generic 30amps right into both slots without any issue. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 12, 2009 Share Posted January 12, 2009 Looking at the circuit diagram from the R34, it looks they are all standard SPST (single poll, single throw), except for the ECM & IGN coil relay, which is DPST (double poll, single throw). Better check your schematic to be sure. Pete Quote Link to comment Share on other sites More sharing options...
zilvia_gt Posted January 13, 2009 Author Share Posted January 13, 2009 Radioshack is probably the cheapest route other than swiping them at the junk yard (after hunting them down of course). Two relays will work, but I think the 30A is the more suitable one: 30A http://www.radioshack.com/product/index.jsp?productId=2062477 40A http://www.radioshack.com/product/index.jsp?productId=3020762 However, there are mixed reviews about the quality and durability of these relays. For those who want the blue relays and can't find them at the junk, here's a like to an online retailer that carries them. Price wise I wouldn't know (haven't called them yet). If you click on the image of the relays, it'll take you to a page where you can view all the other Nissan relays they carry including the green ones mentioned earlier in this post. http://www.mynismo.com/products/?id=4869 Can anyone (...Careless?) post the part numbers of these blue ones for the sake of this post? The website where I found these ask for a part number for confirmation purposes. Quote Link to comment Share on other sites More sharing options...
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