stony Posted October 1, 2007 Share Posted October 1, 2007 Well i figured it would happen soon.... I need one. we were reviewing the SD for the Vpro engine harness and it seems to require a resistor. easiest way will to use the stock rb26 resistor. Does anyone know where it is installed on the gtr?? Engine harness or body harness?? And last but not least does anyone have one they can let go??? Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted October 1, 2007 Share Posted October 1, 2007 Is this what your after Stony? http://cgi.ebay.com/ebaymotors/RB26DETT-INjector-Resistor-Box-Skyline-GTR-JDM-R32-RB25_W0QQcmdZViewItemQQcategoryZ33553QQihZ005QQitemZ150166033246QQrdZ1QQsspagenameZWDVW Quote Link to comment Share on other sites More sharing options...
stony Posted October 1, 2007 Author Share Posted October 1, 2007 yep thanks Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted October 1, 2007 Share Posted October 1, 2007 FWIW I MADE my own injector resister box The injectors are fired off of the ground wires (they come from the ECU) and there is a main power wire that comes from the main relays on the harness. If you take 6, 6watt, 6ohm resistors (can be bought at radio shack in packs of two, for ~2 bucks a piece) and wire them inline with each power wire on the injector, it'll do the same trick. I have been running several thousand miles on my swap with that resistor box and no issues. Quote Link to comment Share on other sites More sharing options...
mannyvig Posted October 1, 2007 Share Posted October 1, 2007 with the factory ecu the power comes from the harness but through the factory o2 sensors. The o2 sensors keep it in either open or closed loop. would wiring them to a constant voltage source with the resistors would keep them in open loop? Or is the ecm supplied ground pulse width what keeps the cold and hot loops different? Im probably speaking from my a$$ right now but im wondering if that will make any difference. Quote Link to comment Share on other sites More sharing options...
stony Posted October 5, 2007 Author Share Posted October 5, 2007 FWIW I MADE my own injector resister box The injectors are fired off of the ground wires (they come from the ECU) and there is a main power wire that comes from the main relays on the harness. If you take 6, 6watt, 6ohm resistors (can be bought at radio shack in packs of two, for ~2 bucks a piece) and wire them inline with each power wire on the injector, it'll do the same trick. I have been running several thousand miles on my swap with that resistor box and no issues. Any pictures???? Someone outbid me!!!! 51.00 bux!!!!! are these really that valuable considering you can build one for less then 20??? Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted October 5, 2007 Share Posted October 5, 2007 I bid $41.00 for it because I wanted an uncut plug. I have a resistor pack with the plug cut off. Resistance from the one white wire to all the six black wires is 6 ohms. .....................<-------////-----------Black Wire ..................<---------////-----------Black Wire ................<----------////-----------Black Wire White Wire<------------////-----------Black Wire .................<----------////-----------Black Wire ..................<---------////-----------Black Wire Sorry for the crude drawing. Basically connect one end of the 6 ohm 6w ceramic resistors all together. This end connects to the white wire. The remaining 6 leads go to the injectors. Not to difficult of a circuit to build. Quote Link to comment Share on other sites More sharing options...
Careless Posted October 5, 2007 Share Posted October 5, 2007 Nice, I'll be making one of these and putting them in an ALU box this weekend and polishing it Quote Link to comment Share on other sites More sharing options...
djz Posted October 5, 2007 Share Posted October 5, 2007 Just use one from a fuel injected L28, wiring will probably be slightly different but it should work the same. Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted October 5, 2007 Share Posted October 5, 2007 FWIW any supra or 3000GT injector resistor box will work as well, you can usually find those real cheap I'll mirror Steath-Z's comments about the circuit. Its super easy to build. Pics of how mine is setup wouldnt help, as I've taped all the resistors together and it looks like a cigarette box now, lol. The white wire comes from the ECCS relay I believe, I'd have to go back and look but its that or the IGN relay. Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted October 6, 2007 Share Posted October 6, 2007 Just use one from a fuel injected L28, wiring will probably be slightly different but it should work the same. You brought out my curiousity about the L28 FI resistor measurements. The L28 fuel injected resistor pack has two ceramic resistors. There is one white wire and two black wires. A resistance check on them measures out at 6 ohms. Now here is the perfect junk yard fix as I see it. Take three of these packs, connect the white leads together and attach the remaining six black leads to the injector harness. Quote Link to comment Share on other sites More sharing options...
chrism Posted October 9, 2007 Share Posted October 9, 2007 The wire diagram looks good but you can tie all the white wires together in the harness and run one white wire to the battery. They are common at the battery anyway. Save some wire. Quote Link to comment Share on other sites More sharing options...
Careless Posted October 9, 2007 Share Posted October 9, 2007 The wire diagram looks good but you can tie all the white wires together in the harness and run one white wire to the battery. They are common at the battery anyway. Save some wire. that's why they sort of angle out from top to middle to bottom, but replacing the ascii-code image with a real jpg would be a bit better. time to go to work EDIT: New diagram attached. Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted October 9, 2007 Share Posted October 9, 2007 Nice drawing. What program did you use to make it? You should add the 6 ohm resistors are for the low impedence injectors. Quote Link to comment Share on other sites More sharing options...
Careless Posted October 9, 2007 Share Posted October 9, 2007 Adobe Illustrator CS2. Haven't upgraded to CS3 yet, as I'd like to format when I do because my system is based around my most used software applications. When I get home today, I'll edit the picture so that one wire is protruding from the box (internal connections) and so that it says low-impedance. Cheers. Quote Link to comment Share on other sites More sharing options...
Careless Posted October 11, 2007 Share Posted October 11, 2007 Revised some of the diagram. Cheers. Quote Link to comment Share on other sites More sharing options...
getoffmyinternet Posted November 26, 2007 Share Posted November 26, 2007 I still think it would be much easier if I could get my hands on the stock box. Does anyone have or can anyone find the part number for this thing? Quote Link to comment Share on other sites More sharing options...
stony Posted November 26, 2007 Author Share Posted November 26, 2007 well there it is the number stamped on it looks like 5406NA maybe someone could check with nissan to see if that crosses to something. i will check later Quote Link to comment Share on other sites More sharing options...
chrism Posted November 26, 2007 Share Posted November 26, 2007 290184833211Check out this resistor on Ebay. Should work. You can send seller questions. I got my injectors and resistor from them. Works great and ships fast. Quote Link to comment Share on other sites More sharing options...
stony Posted November 26, 2007 Author Share Posted November 26, 2007 Got it thanks Quote Link to comment Share on other sites More sharing options...
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