yo880 Posted September 9, 2008 Share Posted September 9, 2008 Hi guys, I am attempting to rebuild the ECU connector on my RB26DETT. As you can see from the photo's, it has been quite severly damaged, luckily the plastic took most of the damage, and most of the wires are intact. I got a connector off an RB25 loom, and have connected 3/4 of it all. The section i have left, i have no idea of what colours go where.. Can anybody have a look at theirs and send me a list of the wire colours vs Pin numbers? my engine is an R33 RB26dett.. the R32 wiring colours are different.. so please only list ones from an R33 RB26. Needed Pinouts 1-20 (which is on the inside of the larger pins), i have attached a pin numbering diagram too The colours i have to find are (short cables): * Blue / Brown * Blue / Red * Yellow / Blue * Green / Red * Black / Yellow * Grey / Black * Brown / Red (Longer cables) * Light Blue * Purple / White * Black / Pink * Orange * Blue / Yellow * Blue / Black * Black / Yellow I will post up a document afterwards with the color / pin / function off both the R33 and R32 RB26dett ecu after i have this info (for verification and for future help of others) To get the correct numbering, look at the back of the Connector (ie. wire side).. the top can be identified by the plastic being higher on the top (ie. my 4th picture is upside down ) Thanks Guys, i appreciate any help Quote Link to comment Share on other sites More sharing options...
Careless Posted September 9, 2008 Share Posted September 9, 2008 here you go. http://www.scribd.com/doc/1033517/Nissan-R33-to-Wolf-V500-pinouts-with-link Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 9, 2008 Author Share Posted September 9, 2008 heres the pdf so far if anyone knows what the functions of the pins not listed are.. let me know them too (they are not in the R33 manual) i will update this when i get more info Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 9, 2008 Author Share Posted September 9, 2008 Thanks, i will update some of the functions (i am missing the grounds and 12v's i think).. but i am looking mostly for wiring colours.. the whole loom is standard, so i don't want to have to break it up to work out what the 20 pins are.. hence i am looking for the colours of the wires . Kent Quote Link to comment Share on other sites More sharing options...
Careless Posted September 9, 2008 Share Posted September 9, 2008 a continuity tester doesn't care about colour! Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 9, 2008 Author Share Posted September 9, 2008 yeah, i know that I would much rather someone double check their R33 loom and let me know the pin order.. saves me tracing all of them, working out what the sensor is, plugging it in then blowing the ECU because i had something not quite right... The colours should be the same across all R33 RB26's (GTS-T's and R32's are different (colourwise in the r32's case) PS. Just updated the document posted above with a little more info from the website above.. anything in Red is unconfirmed (since the website pinouts refer to GTS-T's too.. which are different to the gtr loom) Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 9, 2008 Author Share Posted September 9, 2008 i should probably also add that the information in my document has been taken either through visually ID'ing the Loom (in the case of the colours), or through the respective service manual. There is also a nice little power circuit picture from the PowerFC FAQ on the internet Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted September 10, 2008 Share Posted September 10, 2008 regardless of color, print this doc out, it explains what all the wires actually do, and their corresponding pins on the ecu harness.... http://booztd3.com/Downloads/10-1621%20for%20EMS%20-%2030-1621.pdf Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 11, 2008 Author Share Posted September 11, 2008 OK, Traced all the wires and compared them to an R32 RB26 loom (and my pdf) and i have got most of the wires. The only 2 that i have had trouble with is a Yellow/Blue which goes to the interior dash loom (so i guessed it is the tacho Pin#7), and the other is a Green/Red. the Green/Red has me puzzled, as i still have 2 choices left in comparison to the R32 loom; Cooling fan relay (which is on the Black large connector that eventually goes to the relay box), or the Air Conditioner relay (Which goes to the grey large connector to the relay box). obviously one of these functions have been dropped in the R33, but no idea which. Quote Link to comment Share on other sites More sharing options...
Careless Posted September 12, 2008 Share Posted September 12, 2008 is it possible that the one you got didnt have A/C or is it the connector that's different/missing a pin. I think what you're doing is pretty cool Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 13, 2008 Author Share Posted September 13, 2008 Thanks The "missing" pin on the connector just isn't there on the R33 connector as it is on the R32 connector. Although the R32 wiring harness may be compatible on the R33 engines, they are obviously differences (although probably minor) i went out and bought the rest of the engine bay loom (Relay box etc.) and finished tracing the left over wire. It goes to a 4 pin connector which it shares with a wire that goes to the A/C relay. So i guess it is A/C related (though not exactly sure what would connect to this connector, it is in the RHS corner of the engine bay, nowhere near the A/C compressor.. only thing i can think of is the AC condensor) Interestingly the R33 must have a completely different radiator fan setup to the R32, one in which it isn't controlled by the ECU (as Pin #6 does not exist) Here is what i hope is the final document (until i can get the engine running ) Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 13, 2008 Author Share Posted September 13, 2008 Oh I forgot to add, if anyone is ever in the position to verify the R33 RB26DETT wiring.. please let me know! Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 13, 2008 Author Share Posted September 13, 2008 Here is the completed document R32R33RB26Pinout.pdf Quote Link to comment Share on other sites More sharing options...
fast-datsun Posted September 28, 2008 Share Posted September 28, 2008 Color of wires may or may not match you chart, always use pin out, pin number and usage and you will not make a mistake!!!!!!! Nissan sometime changes colors and uses a color(s) more than once ,,,,,,,, Quote Link to comment Share on other sites More sharing options...
yo880 Posted September 28, 2008 Author Share Posted September 28, 2008 doco includes pin numbers, colour and function Quote Link to comment Share on other sites More sharing options...
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