Canadianz Posted May 19, 2008 Share Posted May 19, 2008 Hi guys, were at the final stretch ! Everything is wired up except this weird grey plug. We have a series two RB25DET and this little plug comes off the harness down near the starter area of the loom. Now I think there was supposed to be a relay here as one of the wires goes to the starter, which we sorted out. As it stands right now the car will turn over but the ECU is not getting power. We have wired everything else up, correctly I think except this plug. Does anyone know what the pin out of the plug is, or what the wires all do besides the big Red/black which is for the starter. Heres the plug: Heres another pic Any help would be awesome, the car now turns over but the ECU is not booting up so we are not getting power to the fuel pump relay or the injectors etc. . . . on a side note if for some reason out ECU has had the biscuit, how would we check ? At the moment it has the battery backup power on but it won't boot up, I think it is related to this plug but Im not sure. Thanks Chris and Rob Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted May 19, 2008 Share Posted May 19, 2008 I can't help you with this plug (at least nlot without seeing a diagram), but I'm glad to hear you're so close. I might have cruise out there later and check it out. Quote Link to comment Share on other sites More sharing options...
Canadianz Posted May 20, 2008 Author Share Posted May 20, 2008 Any ideas guys? So far we've got the black/red one wired to kick the starter over, the white/red one as the alternator sense wire, and the yellow/brown wired as the alternator lamp wire I'm just not clear on the blue, black and yellow/white wires at the moment. Chris and Rob Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted May 20, 2008 Share Posted May 20, 2008 I have an S2 harness as well, and am wondering if you have the wiper harness in your hand from the RB car... I know for sure I don't have a plug that looks like that in my harness now. Quote Link to comment Share on other sites More sharing options...
Canadianz Posted May 20, 2008 Author Share Posted May 20, 2008 Thanks Evan, thats a possibility. From looking on the nico forums at wiper wiring on the S1 rb25's theres around 8 wires to control them, so I think this is possibly something different. Im guessing you probably cut this plug out and wired things in individually, or at least thats what I've started to do. I'm going to work on the car tonight and try to trace down the other three wires, and double check all the ecu grounds etc. to see why it won't boot up, so I'll see where that takes me. Thanks Chris and Rob Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted May 20, 2008 Share Posted May 20, 2008 Best of luck man, that does look simaler to my 240sx wiper harness and I know it was tied in with the engine harness. I did strip all the tape off my harness to remove alot of the "extra" stuff. That looks familiar and it is probably one of the ones I removed. Evan Quote Link to comment Share on other sites More sharing options...
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