skib Posted April 5, 2009 Share Posted April 5, 2009 The swap is almost done but I still have a few mystery wires (81' harness) Iv been looking threw old threads for a few days and found some really good info but mine don't seem to mach up to a lot of the descriptions Iv read and reading manual diagrams is making my head hurt what are they? and do I need them? first two plugs: brown is something for FI? what dose it plug to? white...no clue? this plug is down by my ECU: possible ignitor plug in the wrong place? (just based on the looks of the plug) speaking of ignitor plug, is it part of the engine harness? because I don't seem to have one and it doesn't look like anything been cut off there wiring erks me sometimes Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted April 6, 2009 Share Posted April 6, 2009 The brown plug goes to the efi relay. I'm pretty sure you can get one from a Z31 or maxima of 80s vintage that will work but check the diagrams first. The other one is used when using the nissan ECCS analyzer but not for general running. Quote Link to comment Share on other sites More sharing options...
big-phil Posted April 6, 2009 Share Posted April 6, 2009 The two wire plug I believe is the famous "goes nowhere" plug, leave it unplugged. Quote Link to comment Share on other sites More sharing options...
loy Posted April 6, 2009 Share Posted April 6, 2009 For the 5 pin white plug, check out "Figure N" at http://forums.hybridz.org/showthread.php?t=99620 Figure N Ok, this is in the same loom as the FI relay. There are 3 wires that you will need to cut and splice. First off, don't cut any wires that are going to the plug for the FI relay, those need to stay intact. There are 5 other wires not attached to the relay. They are from left to right; -Green - Constant power (Needs to be run to a 12+ volt constant) -Black with white strip - Switched power (Needs to be run to a 12+ volt switched power) The end from the relay side needs to goto the switched power. Not the harness side. -Blue with red stripe - is switched power for your fuel pump relay (has 12+ volts when key is on, will have power for 5 seconds if car is not running to prime the fuel system, and will have a constant 12+ volts when car is running.) The yellow and white wires you see bent off to the side you will not need and wont be using Quote Link to comment Share on other sites More sharing options...
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