RB25DET S1 Into R32 GTS-T Assistance Required!!!

[cdenR32]

Hi All, Ive recently pulled my head in and gotten started on my 2year long project for my R32 RB25 swap, I went into it head high and confident it was an easy swap and plug and play wiring. I was wrong. The engine is a S1 RB25 and I'm running RB25 ECU And loom.

I got the swap done a few weeks ago and have been working on the car on my time off, however i cannot get the engine to run, at first the engine would crank however the fuel pump would not run,  i dove a little deeper and realised that i would need to connect the wires from the RB25 Body Loom and the RB20 Body loom. went through the ECU pinout and followed the wires from the Body looms one by one to find what was needed to start the car.

Now I have rewired the RB25 loom with the old R32 Body loom attached, however i am still having issues starting the car, now the pump works but still wont fire. 
The car has spark but looks very weak, however I'm suspect that its not getting any fuel. I have read a few posts related to the "Main plug" near the air intake however cannot find any information on what wiring to hook up to where. 

If anyone has done this swap, or has any knowledge at all on RB25's into 32 i would really appreciate your comment regarding this, im really keen to get this car finished. 

Thanks in advance

[TurboTapin]

This is a simple swap when you reuse the RB20 loom and auxiliaries. I run a standalone, but if I remember right, using the RB25 ecu you only have 2 injectors to inverse. 

There are many DIY's on this subject online, including this forum. 

 

Edited November 6 by TurboTapin

[cdenR32]

On 06/11/2024 at 12:44 PM, TurboTapin said:

This is a simple swap when you reuse the RB20 loom and auxiliaries. I run a standalone, but if I remember right, using the RB25 ecu you only have 2 injectors to inverse. 

There are many DIY's on this subject online, including this forum. 

 

Thanks mate, yeah I've heard that alot and i am definitely regretting using the 25 Loom now, i have gone through and traced all the plugs from the 20loom and re wired them into the 25 loom, I have currently got Crank, Fuel and accessory's working, just need to finalise the loom and run the wire for the Ignition (Spark) and it should be running, will update if i have any luck.