Wiring Guide/help Needed For Rb25Det Neo Into R32 Gtst

[Ryan!]

Hey guys

So basically i have put a RB25DET NEO into a R32 GTST
Everything mechanical is done.

I have used the RB25det NEO Loom and ECU

I basically need a guide/help on wiring the Rb25det Neo engine loom to the R32 gtst body loom and to basically get this thing started and running.

Now i have searched everywhere for days found little bits and pieces like this :

The internal wiring is the only hard part. You need to place the wires from the 34 loom into the factory 32 internal loom. This is easy if you know what every wire from the 32 and 34 ecu’s is and what thus each wire in each plug in the 32 and 34 kick panel is. It is easiest (in my opinion) to cut the internal loom plugs off the 34 loom and off the 32 loom where it went onto the main ecu loom, and attach the 32 plugs onto the 34 ecu loom. This way, if you crash your 32 or whatever and want to put the neo into a new 32 all your wiring is done basically. If you do it the other way, you will also need all the corresponding 34 internal plugs from the internal loom. I say do it the first way. It’s your choice.
The only point to really note and emphasise here is this:
The r32 is basic. The 34 had TCS and ABS. Each system in the 34 has it’s own computer ie for the
1. Engine
2. TCS
3. ABS
Each computer works both independently, receiving the signals it needs to and consequently processing them, and together. They all talk to each other. If you remove the ABS computer (or in the 32’s case, it was never there to start with) the engine computer does not see a signal from the ABS computer, so it thinks the car has no brakes. And it won’t go. So you need to trick the ECU into thinking that the TCS and ABS computers are their, functioning properly, and sending a signal so the ecu thinks you have never locked up braking or lost traction whilst driving. The information on how to do this, along with spreadsheets of what every wire in the 32 and 34 kick panels is, the plug layouts, ecu pinouts etc is all available via application in writing

Now it says what to do but not how TO DO IT ?!?!

does anyone have a guide or write up for this?

OR know how to do it

Thanks kindly

Ryan

[iruvyouskyrine]

It's pretty easy. I'll see if I have some pics from when I did mine. There is really not much that needs to be done.

Power and earth come from engine bay. Fuel pump, tacho and some other stuff go into the body loom in passenger footwell.

There is a dedicated guide here in the how to section by the way. Search and Ye shall find.

[iruvyouskyrine]

Alternatively send it to SimonS14 on here and get him to do a complete plug and play jobby.

[Ryan!]

Sweet, ill send him a PM

But if you can get some more information/ photos that will be good!

and i will search on the how to guide as well !

thanks

[GTSBoy]

You will need to Nistune the ECU to get rid of the fault codes and CEL. ABS and TCS are the big problem. Nistune fixes all.

The only way to do a neat job of it is to use the complete R34 loom and add the body connections from R32 into it, rather than the sort of horrible hack and tack approach that has been documented elsewhere.

I wish could give you a nice summary on how to do it, but I sensibly left that part in the hands of people who knew exactly what to do and had the bits to do it with before the swap commenced.

[Ryan!]

Hmmm okay looks like ill get a nistune after i get it started and see how that goes.

but yeah im wanting to cut the plugs off the R32 gtst loom and use them on the NEO loom, if you do find any information on how to do it please lemme know.

and Josh, did you find any photos ????

thanks